BLUES

Lake Tekapo

#51A8BF

RGB 81, 168, 191 · HSL 193°, 46%, 53% · CMYK 58, 12, 0, 25

Lake Tekapo is #51A8BF in HEX — rgb(81, 168, 191), hsl(193°, 46%, 53%), cmyk(58%, 12%, 0%, 25%).

Lake Tekapo pulls into the mid-tone end of the blues spectrum — HSL 193°, 46%, 53%. 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#51A8BF

RGB81, 168, 191

HSL193°, 46%, 53%

HSV193°, 58%, 75%

CMYK58, 12, 0, 25

Decimal5351615

CSS RGBrgb(81, 168, 191)

CSS HSLhsl(193, 46%, 53%)

Paint Matches — this color across 16 brands

Dulux

Lake Tekapo NZ10A4

Exact match

Vista Paint

Patch of Blue K-186

ΔE 2 · #4CAAC4

Behr

Jet Ski M490-5

ΔE 3.7 · #4DB0CA

Benjamin Moore

Atlantis 768

ΔE 3.7 · #55B2CA

Dunn-Edwards

Frozen Wave DE5829

ΔE 4.4 · #56ACCA

PPG

Blue Calypso 1235-5

ΔE 4.5 · #55A7B6

Kobra

Blue 28

ΔE 4.7 · #4EB3CD

Kilz

Caspian Blue RE140-01

ΔE 4.9 · #5AA0B9

Sherwin-Williams

Fountain SW6787

ΔE 5.1 · #56B5CA

Valspar

Ocean Sigh 5002-10A

ΔE 5.5 · #51AECE

Hallman-Lindsay

Epimethius 660

ΔE 7.6 · #4BB2D5

Dutch Boy

Sky Blue D-6742

ΔE 10.5 · #7AC2D8

Farrow & Ball

St Giles Blue 280

ΔE 11 · #599EC4

IKEA

IKEA084 84

ΔE 12.7 · #83AAC1

RAL

Pastel Blue 5024

ΔE 14.2 · #5D9B9B

Colorhouse

Water .05 Water-05

ΔE 19.7 · #82979D

Light Reflectance & Undertone

Light Reflectance Value (LRV)

34/100

Medium

0 · DarkLight · 100

Balanced reflectance — holds colour without washing out. Versatile for most rooms and the most forgiving range for true-to-chip results.

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

#51A8BF

#BE6850

Analogous

#50BE9F

#51A8BF

#506FBE

Triadic

#51A8BF

#BE50A6

#A6BE50

Split-Complementary

#51A8BF

#BE506F

#BE9F50

Tetradic

#51A8BF

#9F50BE

#BE6850

#6FBE50

Monochromatic

#204A56

#347A8D

#51A8BF

#88C3D3

#C0DFE8

Rectangle

#51A8BF

#6850BE

#BE6850

#A6BE50

Compound

#51A8BF

#506FBE

#BE6850

#BE9F50

Variations

Lighter

#73B8CB

#9BC7D3

#C8DDE3

Darker

#388AA0

#256070

#143842

Saturation

#779198

#50A6BE

#30B9DF

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

2.73:1

Fail

vs Black

7.70:1

AAA

Deuteranopia

#51A8BF

#8694C1

Original → Simulated

Protanopia

#51A8BF

#9D9DBC

Original → Simulated

Tritanopia

#51A8BF

#50ABA6

Original → Simulated

Color Psychology

Focused · Cooling

Lake Tekapo 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

#7CABAA

Warm Bulb 2700K

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

#51A8BF

Daylight 5500K

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

#69B0CF

Cool Bulb 6500K

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

Pairs With

#E9ECEC

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.

#A05946

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: #51A8BF;

CSS — background

background-color: #51A8BF;

CSS Variable

--color-lake-tekapo: #51A8BF;

Tailwind v3 — config

colors: { 'lake-tekapo': '#51A8BF' }

Tailwind — arbitrary

bg-[#51A8BF] text-[#51A8BF]

SCSS

$lake-tekapo: #51A8BF;

Similar Colors

Atlantis Blue

#54B1C9 · ΔE 3.4

Ash Blue

#4D9CAE · ΔE 5.3

Palace Blue

#5D9FB6 · ΔE 5.5

Baltimore Sky

#45ADBE · ΔE 5.6

Spa Day

#5EA3B1 · ΔE 6.0

Cool Blue

#419AB7 · ΔE 6.3

Santa Clara

#57ABB7 · ΔE 6.4

Blue Lagoon

#409CAC · ΔE 6.4

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 #51A8BF?

#51A8BF is Lake Tekapo, a mid-tone blue with a cool undertone.

Is #51A8BF warm or cool?

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

What rooms work best with Lake Tekapo?

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

What colors pair well with Lake Tekapo?

Lake Tekapo 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 Lake Tekapo?

You can download Lake Tekapo 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 Lake Tekapo?

The hex code is #51A8BF. In RGB it's 81, 168, 191, and in HSL it's 193°, 46%, 53%.

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