Nearest named color: Sky Blue
#91D5DA
#91D5DA
Nearest named
Sky Blue
Family
Blue
Lightness
83.0%
Chroma
0.069
Hue angle
201.8°
Temperature
Cool
Contrast on white
1.65:1 · Fail
Contrast on black
11.27:1 · AAA
Web-safe
#99CCCC
CSS oklch()
83% 0.07 202

#91D5DA is a soft, cool cyan-blue. On the Color Lab it reads clean and engineered. It holds up as a large surface and is too pale to lead as a primary accent.

Palettes built on #91D5DA

Not just a swatch — here's how #91D5DA works with other colors. Named schemes with #91D5DA in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Sky Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Coastal Morning Lead · 5 colors

Sky Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Sky Blue sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Tech Product Signal · 5 colors

Sky Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Sky Blue.

Minimal Editorial Surface · 5 colors

Sky Blue is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Sky Blue carrying the quiet middle.

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Color Lab

How #91D5DA actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 32/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 73/100
High
Soft and easy on the eye — gentle backdrops, calm surfaces.
Depth 17/100
Very low
Airy and open — recedes, leaves the composition light.
Naturalness 8/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 32/100
Low
A faint retro warmth without tipping into sepia.
Luxury 23/100
Low
Playful and accessible rather than exclusive.
Brand distinctiveness 26/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 17/100
Very low
Weak as an action color — too pale, too dark or too muted to signal.
Surface fit 63/100
High
Calm enough for large fills — backgrounds, cards, sections.
Print safety 82/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #91D5DA

For UI
For branding
For interior
For fashion
People also use #91D5DA with

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA
Body text Do not use for body copy on light surfaces. Avoid
Large display Only on dark surfaces. Avoid
Background Pair with #141310 text at 11.3:1. Use
Subtle surface Use #EBF5F6 for cards and hover fills. Tint 80
Avoid beside #90BCDA — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #91D5DA at work across the surfaces designers actually ship.

Website / UI
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Dashboard
Revenue
$48.2k ▲ 12%
Brand
AVELINE
Studio
Poster
Nov 14 · 8PM
NIGHT
MARKET
Packaging
BLOOM
Botanical Wash
250 ml
Interior

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #91D5DA;
  --color-base-rgb: 145 213 218;
  --color-base-oklch: oklch(83.0% 0.069 201.8);
  --color-50: #F3FBFC;
  --color-100: #E0F4F5;
  --color-200: #C2E8EB;
  --color-300: #97D4D8;
  --color-400: #70BDC2;
  --color-500: #4EA1A6;
  --color-600: #427C80;
  --color-700: #33595C;
  --color-800: #243B3C;
  --color-900: #182425;
  --color-on-base: #141310;
}