BLUES

Promise

#B4C5E5

RGB 180, 197, 229 · HSL 219°, 49%, 80% · CMYK 21, 14, 0, 10

Promise is #B4C5E5 in HEX — rgb(180, 197, 229), hsl(219°, 49%, 80%), cmyk(21%, 14%, 0%, 10%).

Promise pulls into the airy end of the blues spectrum — HSL 219°, 49%, 80%. 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#B4C5E5

RGB180, 197, 229

HSL219°, 49%, 80%

HSV219°, 21%, 90%

CMYK21, 14, 0, 10

Decimal11847141

CSS RGBrgb(180, 197, 229)

CSS HSLhsl(219, 49%, 80%)

Paint Matches — this color across 16 brands

Valspar

Promise 4005-7C

Exact match

Dulux

Mauve Lily S42H2

ΔE 0.9 · #B4C3E3

Kilz

April Morning RB240-01

ΔE 1.4 · #B6C4E2

Behr

Heritage 600F-4

ΔE 2.2 · #B2C8E6

Vista Paint

By the Bay K-109

ΔE 2.9 · #B4C7E2

Hallman-Lindsay

Simply Sparkling 594

ΔE 3.1 · #B0C5E0

Dunn-Edwards

Prim Blue DE5898

ΔE 3.6 · #B9C4DE

Benjamin Moore

Oriental 1418

ΔE 3.8 · #B5BEDA

Sherwin-Williams

Agapanthus SW9066

ΔE 4.3 · #BBC5DE

PPG

Baby Bunting 1243-3

ΔE 4.5 · #ABCAEA

Dutch Boy

Simply Sparkling DCP-0594

ΔE 5.3 · #BCCEE6

IKEA

IKEA085 85

ΔE 6.2 · #9FC1DF

Farrow & Ball

Lulworth Blue 89

ΔE 9.6 · #A1B8CA

Colorhouse

Dream .03 Dream-03

ΔE 10.2 · #B4CBD9

Kobra

Violet 23

ΔE 11.5 · #B7B1DC

RAL

Agate Grey 7038

ΔE 17.8 · #C3C3C3

Light Reflectance & Undertone

Light Reflectance Value (LRV)

55/100

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 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

#B4C5E5

#E5D3B3

Analogous

#B3DDE5

#B4C5E5

#BBB3E5

Triadic

#B4C5E5

#E5B3C5

#C5E5B3

Split-Complementary

#B4C5E5

#E5BBB3

#DDE5B3

Tetradic

#B4C5E5

#E5B3DD

#E5D3B3

#B3E5BB

Monochromatic

#416DBE

#7A99D1

#B4C5E5

#ECF0F8

Rectangle

#B4C5E5

#D3B3E5

#E5D3B3

#C5E5B3

Compound

#B4C5E5

#BBB3E5

#E5D3B3

#DDE5B3

Variations

Lighter

#C2D0EA

#D4DDED

#E7EBF3

Darker

#7495D2

#345EAD

#1C3666

Saturation

#C5CAD3

#B3C5E5

#A6C1F2

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

1.74:1

Fail

vs Black

12.06:1

AAA

Deuteranopia

#B4C5E5

#B8C3E6

Original → Simulated

Protanopia

#B4C5E5

#C2C2E1

Original → Simulated

Tritanopia

#B4C5E5

#B1CAC6

Original → Simulated

Color Psychology

Focused · Cooling

Promise 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

#C6C0C7

Warm Bulb 2700K

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

#B4C5E5

Daylight 5500K

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

#B4C5EB

Cool Bulb 6500K

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

Pairs With

#E9EAEC

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.

#CFB88B

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 · 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 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: #B4C5E5;

CSS — background

background-color: #B4C5E5;

CSS Variable

--color-promise: #B4C5E5;

Tailwind v3 — config

colors: { 'promise': '#B4C5E5' }

Tailwind — arbitrary

bg-[#B4C5E5] text-[#B4C5E5]

SCSS

$promise: #B4C5E5;

Similar Colors

Oriental Iris

#B4BDD9 · ΔE 4.1

Swiss Blue

#A3C1E3 · ΔE 4.7

Windmill Wings

#BCD2ED · ΔE 5.4

Feather Soft

#BDC5DC · ΔE 5.5

Purple Lace

#CBCFEA · ΔE 6.7

Blue Ice

#BACBDF · ΔE 6.8

Blue Orchid

#B8B9D2 · ΔE 7.2

Summer Mist

#9DB2D0 · ΔE 7.4

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 #B4C5E5?

#B4C5E5 is Promise, a soft blue with a cool undertone.

Is #B4C5E5 warm or cool?

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

What rooms work best with Promise?

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

What colors pair well with Promise?

Promise 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 Promise?

You can download Promise 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 Promise?

The hex code is #B4C5E5. In RGB it's 180, 197, 229, and in HSL it's 219°, 49%, 80%.

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