BLUES

Tourmaline Water Blue

#99D3DF

RGB 153, 211, 223 · HSL 190°, 52%, 74% · CMYK 31, 5, 0, 13

Tourmaline Water Blue is #99D3DF in HEX — rgb(153, 211, 223), hsl(190°, 52%, 74%), cmyk(31%, 5%, 0%, 13%).

Tourmaline Water Blue pulls into the light end of the blues spectrum — HSL 190°, 52%, 74%. The balanced saturation makes it confident without overpowering, and the hue reads cool. In interior projects it shines on bedrooms, bathrooms, home offices — for calm, focused environments. Reads best alongside warm white trim, oak or walnut, brass or matte black hardware.

Color Codes

HEX#99D3DF

RGB153, 211, 223

HSL190°, 52%, 74%

HSV190°, 31%, 87%

CMYK31, 5, 0, 13

Decimal10081247

CSS RGBrgb(153, 211, 223)

CSS HSLhsl(190, 52%, 74%)

Paint Matches — this color across 16 brands

PPG

Ocean Cruise 1236-4

ΔE 1 · #9CD4E1

Behr

Partly Cloudy S500-3

ΔE 1.8 · #9ED4E2

Dulux

Washed Blue S32F1

ΔE 1.9 · #94D4DF

Benjamin Moore

Delano 766

ΔE 2 · #A1D7E3

Vista Paint

Orleans Tune C-657

ΔE 2.4 · #9AD6E6

Sherwin-Williams

Cloudless SW6786

ΔE 2.4 · #8FD0DD

Valspar

Infinity Pool 5003-9C

ΔE 2.9 · #9CD5E6

Kilz

Glacier Gorge RE220-02

ΔE 3 · #9FD8E8

Dunn-Edwards

Winter Chill DE5758

ΔE 3.1 · #8ECED8

Hallman-Lindsay

Orleans Tune 658

ΔE 3.3 · #97D5E7

Kobra

Blue 27

ΔE 4.9 · #87C8D7

IKEA

IKEA083 83

ΔE 7.5 · #B6DCE6

Farrow & Ball

Blue Ground 210

ΔE 8.7 · #A1C5C8

Dutch Boy

Sky Blue D-6742

ΔE 9 · #7AC2D8

Colorhouse

Dream .04 Dream-04

ΔE 9.6 · #9CC7C4

RAL

Light Green 6027

ΔE 11.7 · #84C3BE

Light Reflectance & Undertone

Light Reflectance Value (LRV)

59/100

Light

0 · DarkLight · 100

Reflects plenty of light and keeps spaces feeling open and airy while still showing clear colour. A safe, flexible choice for living areas.

Undertone

TemperatureCool MasstoneTeal UndertoneGreen

Reads as a cool teal with a green undertone showing through, especially in daylight. Pair trim and adjacent colours to either calm or amplify that undertone.

Color Theory

Complementary

#99D3DF

#DFA69A

Analogous

#9ADFC8

#99D3DF

#9AB1DF

Triadic

#99D3DF

#DF9AD4

#D4DF9A

Split-Complementary

#99D3DF

#DF9AB1

#DFC89A

Tetradic

#99D3DF

#C89ADF

#DFA69A

#B1DF9A

Monochromatic

#3697AB

#60BBCD

#99D3DF

#D4EDF2

#ECF7F9

Rectangle

#99D3DF

#A69ADF

#DFA69A

#D4DF9A

Compound

#99D3DF

#9AB1DF

#DFA69A

#DFC89A

Variations

Lighter

#AEDCE6

#C6E3E9

#DFEDF0

Darker

#5EBDD0

#2C8FA3

#185460

Saturation

#B2C4C7

#9AD4DF

#8ADEEF

Interior Use

Best Rooms

bedrooms, bathrooms, home offices

Best Uses

main walls, ceilings, trim, cabinetry

Pairs With

warm white trim, oak or walnut, brass or matte black hardware

Accessibility (WCAG)

vs White

1.65:1

Fail

vs Black

12.74:1

AAA

Deuteranopia

#99D3DF

#BBC3E1

Original → Simulated

Protanopia

#99D3DF

#CBCBDD

Original → Simulated

Tritanopia

#99D3DF

#9AD4D1

Original → Simulated

Color Psychology

Focused · Cooling

Tourmaline Water Blue lowers the temperature of a room — useful in south-facing rooms that overheat visually, and in home offices where you want a clear head. Pair with warm wood and brass to keep it from reading clinical.

SymbolismTrust, depth, stability

PersonalityClear-headed, dependable, contemplative

focustrustcalmofficebedroomdepth

How it looks under different light

#B2CBC2

Warm Bulb 2700K

Incandescent / soft white LED — pulls colour toward yellow/amber.

#99D3DF

Daylight 5500K

Midday natural light or daylight-spec LED — closest to the paint chip.

#9FD0E7

Cool Bulb 6500K

Cool white LED / overcast daylight — pulls colour toward blue.

Pairs With

#E9ECED

Trim

Matched off-white

Same hue at 92% lightness — trim reads coordinated, not stark.

#F7F8F8

Ceiling

Whisper tint

Near-white with a hint of the hero's undertone — ceiling feels intentional.

#CA8577

Accent

Complementary punch

Hue +180°, slightly muted for paint vs. screen — use on a door, frame, or single piece.

#574738

Floor

Walnut neutral

Warm mid-brown grounds the scheme regardless of hero hue.

Paint Info

Brand · Product Line

Benjamin Moore / Regal Select Interior

Recommended Finishes

Eggshell (walls) · Pearl (trim) · Matte (ceiling)

Eggshell hides imperfections on main walls while keeping the color rich; pearl on trim adds subtle sheen and easier cleaning; flat matte on ceilings prevents glare.

Best Surfaces

Primary walls · Cabinetry · Trim · Soft furniture

Coverage & Dry Time

Typical coverage 350-400 sq ft per gallon over a primed surface.

Touch-dry in ~1 hour. Recoat after 4 hours. Full cure 7-14 days.

Primer

Standard primer is adequate.

Application Tip

Use a 9" microfiber roller on walls and a 2.5" angled sash brush for trim cuts. Two coats minimum for even depth.

Paint Calculator

Wall area (m²)

Coats

Coverage (m² / L)

You'll need

4.0 litres

1.06 US gallons · room for one touch-up coat. Buy slightly more to ensure single-batch match.

Code Snippets

CSS — color

color: #99D3DF;

CSS — background

background-color: #99D3DF;

CSS Variable

--color-tourmaline-water-blue: #99D3DF;

Tailwind v3 — config

colors: { 'tourmaline-water-blue': '#99D3DF' }

Tailwind — arbitrary

bg-[#99D3DF] text-[#99D3DF]

SCSS

$tourmaline-water-blue: #99D3DF;

Similar Colors

Delano Waters

#A0D6E2 · ΔE 1.8

California Breeze

#9ED9E2 · ΔE 2.6

Rhythm and Blues

#8AD0DB · ΔE 3.9

Indigo

#A1CFD7 · ΔE 4.0

Blue Rapids

#95C8D2 · ΔE 4.2

Sea Isle

#A5D7DC · ΔE 4.5

Spectra Blue

#98CED0 · ΔE 5.7

Sonoma Skies

#A1D9DB · ΔE 5.7

Built by DSGN.HOUSE Updated 2026

Our color tools run on our own catalogue of 26,000+ real paint colors across 16 brands — Benjamin Moore, Sherwin-Williams, Behr, Dulux, RAL and more — with the color math (HSL and CIELAB matching) computed in-house, not scraped from summaries. Every color you pick maps to a real, buyable paint with its code, so what you see here you can actually take to the store. We review and update these tools and their data regularly.

Created by Denis Kataev, founder of DSGN.HOUSE — a software engineer and digital entrepreneur building professional color-design tools for everyone.

Frequently Asked Questions

What color is #99D3DF?

#99D3DF is Tourmaline Water Blue, a soft blue with a cool undertone.

Is #99D3DF warm or cool?

Tourmaline Water Blue reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Tourmaline Water Blue?

Tourmaline Water Blue works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with Tourmaline Water Blue?

Tourmaline Water Blue pairs naturally with warm white trim, oak or walnut, brass or matte black hardware. Its complementary color is also a strong contrast option for accents.

Where can I download Tourmaline Water Blue?

You can download Tourmaline Water Blue on DSGN.HOUSE in 15 designer formats including CSS gradient, Figma, Procreate swatches, Tailwind config, Adobe ASE, SVG, and 4K wallpapers — all free.

What's the hex code for Tourmaline Water Blue?

The hex code is #99D3DF. In RGB it's 153, 211, 223, and in HSL it's 190°, 52%, 74%.

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