BLUES

Calcareous Sinter

#DDEEFF

RGB 221, 238, 255 · HSL 210°, 100%, 93% · CMYK 13, 7, 0, 0

Calcareous Sinter is #DDEEFF in HEX — rgb(221, 238, 255), hsl(210°, 100%, 93%), cmyk(13%, 7%, 0%, 0%).

Calcareous Sinter pulls into the airy end of the blues spectrum — HSL 210°, 100%, 93%. The saturated saturation makes it bold and immediate, 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#DDEEFF

RGB221, 238, 255

HSL210°, 100%, 93%

HSV210°, 13%, 100%

CMYK13, 7, 0, 0

Decimal14544639

CSS RGBrgb(221, 238, 255)

CSS HSLhsl(210, 100%, 93%)

Paint Matches — this color across 16 brands

Behr

Northern Star 610C-1

ΔE 1 · #DAECFC

Dunn-Edwards

Cloudless DE5861

ΔE 1.9 · #D6EAFC

Valspar

Dewdrop 4006-7A

ΔE 3.4 · #D7E8F4

Benjamin Moore

White 2067-70

ΔE 3.5 · #D8E6F3

Dulux

Powder Blue Quarter S40G1Q

ΔE 4 · #D2E3F2

Kilz

Elegant Lace RC220-02

ΔE 5.1 · #D8E3EE

Hallman-Lindsay

Brush Blue 607

ΔE 5.2 · #D4E1ED

Vista Paint

Moondancing K-102

ΔE 5.3 · #DDE5EF

PPG

Iceberg 1164-2

ΔE 5.3 · #DAE4EE

IKEA

IKEA049 49

ΔE 6.4 · #D2DCEF

Colorhouse

Sprout .03 Sprout-03

ΔE 7.1 · #CCDCE7

Sherwin-Williams

Rhythmic Blue SW6806

ΔE 7.6 · #CCDBE5

RAL

Signal White 9003

ΔE 10.7 · #F4F4F4

Dutch Boy

Tinge Grey VS-9117

ΔE 10.9 · #E2E2E2

Farrow & Ball

Cabbage White 269

ΔE 11.3 · #E8EEEA

Kobra

White 01

ΔE 13.1 · #EAEAE4

Light Reflectance & Undertone

Light Reflectance Value (LRV)

84/100

Very Light

0 · DarkLight · 100

Bounces most light back into the room — maximises brightness and makes small or north-facing rooms feel larger. Reads close to a soft neutral.

Undertone

TemperatureCool MasstoneBlue UndertoneViolet

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

Color Theory

Complementary

#DDEEFF

#FFEDDB

Analogous

#DBFFFF

#DDEEFF

#DBDBFF

Triadic

#DDEEFF

#FFDBED

#EDFFDB

Split-Complementary

#DDEEFF

#FFDBDB

#FFFFDB

Tetradic

#DDEEFF

#FFDBFF

#FFEDDB

#DBFFDB

Monochromatic

#42A1FF

#8FC7FF

#DDEEFF

#E5F2FF

Rectangle

#DDEEFF

#EDDBFF

#FFEDDB

#EDFFDB

Compound

#DDEEFF

#DBDBFF

#FFEDDB

#FFFFDB

Variations

Lighter

#E2F1FF

#EBF4FD

#F4F9FD

Darker

#7CBEFF

#0682FF

#004C98

Saturation

#E8EDF3

#DBEDFF

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

1.18:1

Fail

vs Black

17.75:1

AAA

Deuteranopia

#DDEEFF

#E4EAFF

Original → Simulated

Protanopia

#DDEEFF

#EBEBFD

Original → Simulated

Tritanopia

#DDEEFF

#DCF1EE

Original → Simulated

Color Psychology

Focused · Cooling

Calcareous Sinter 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

#E5DFDA

Warm Bulb 2700K

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

#DDEEFF

Daylight 5500K

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

#D2E4FF

Cool Bulb 6500K

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

Pairs With

#E7EBEE

Trim

Matched off-white

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

#F7F7F8

Ceiling

Whisper tint

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

#F2BF8C

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) · Semi-gloss (trim) · Flat (ceiling)

Light tones absorb less light than expected — eggshell adds warmth on walls, semi-gloss gives trim crisp definition against pale walls.

Best Surfaces

Primary walls · Trim · Ceilings · 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; pale colors typically need 2 coats for full opacity.

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: #DDEEFF;

CSS — background

background-color: #DDEEFF;

CSS Variable

--color-calcareous-sinter: #DDEEFF;

Tailwind v3 — config

colors: { 'calcareous-sinter': '#DDEEFF' }

Tailwind — arbitrary

bg-[#DDEEFF] text-[#DDEEFF]

SCSS

$calcareous-sinter: #DDEEFF;

Similar Colors

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#D7E5F2 · ΔE 3.8

Cumulus Cotton

#D3E8F1 · ΔE 5.1

White Heaven

#E2E5F1 · ΔE 5.7

Billowy Down

#CCE8F3 · ΔE 5.8

Caribbean Mist

#CDE7F1 · ΔE 5.8

Bashful Blue

#C8E6F3 · ΔE 6.2

Light Blue

#CAE8F3 · ΔE 6.3

Harbor Fog

#D3E7ED · ΔE 6.5

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 #DDEEFF?

#DDEEFF is Calcareous Sinter, a light blue with a cool undertone.

Is #DDEEFF warm or cool?

Calcareous Sinter reads cool, which influences how it interacts with surrounding tones and natural light.

What rooms work best with Calcareous Sinter?

Calcareous Sinter works well in bedrooms, bathrooms, home offices. Designers typically use it for main walls, ceilings, trim, cabinetry.

What colors pair well with Calcareous Sinter?

Calcareous Sinter 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 Calcareous Sinter?

You can download Calcareous Sinter 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 Calcareous Sinter?

The hex code is #DDEEFF. In RGB it's 221, 238, 255, and in HSL it's 210°, 100%, 93%.

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