What color is #91CBE5?

#91CBE5 is a light, soft cyan-blue. In RGB it is rgb(145, 203, 229), and in HSL hsl(199, 62%, 73%).

Is #91CBE5 accessible as text?

On white, #91CBE5 has a contrast ratio of 1.77:1 (fails WCAG AA for body text); on black it is 11.88:1 (passes). For text placed on #91CBE5, use black for the best readability.

What is the closest Tailwind color to #91CBE5?

The nearest Tailwind CSS token is sky-300 (#74D4FF).

What colors go well with #91CBE5?

#91CBE5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E5AA8F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #91CBE5 below.

Is #91CBE5 good for buttons?

#91CBE5 works well for buttons and highlights, but use black text on #91CBE5 — white text only reaches 1.77:1, below the 4.5:1 needed for normal-size labels.

Is #91CBE5 the same as CSS skyblue?

No — #91CBE5 is not the CSS named color skyblue, but skyblue (#87CEEB) is the closest CSS named color.

#91CBE5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #91CBE5

Not just a swatch — here's how #91CBE5 works with other colors. Named schemes with #91CBE5 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #91CBE5 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

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

Lead #91CBE5 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Base #91CBE5 Surface #ECEADC Highlight #F4F2E7 Secondary #B3B19F Ink #2A2723

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

Signal #91CBE5 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #BDF2FF

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

Surface #F6F4EF Accent #91CBE5 Secondary #DFF3FC Support #969386 Ink #16140F

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.

Build a working theme in the generator →

Color Lab

How #91CBE5 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 29/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 71/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 18/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 25/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 27/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 21/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 61/100

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 #91CBE5

For UI

For branding

For interior

For fashion

People also use #91CBE5 with

Seafoam Cornflower Blue Dusty Rose Platinum Charcoal

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 10.5:1. Use

Subtle surface Use #EBF3F7 for cards and hover fills. Tint 80

Avoid beside #8FADE5 — 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 #91CBE5 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

Every model

Export

:root {
  --color-base: #91CBE5;
  --color-base-rgb: 145 203 229;
  --color-base-oklch: oklch(81.1% 0.070 227.6);
  --color-50: #F2F9FD;
  --color-100: #DDF0F8;
  --color-200: #BDDFEF;
  --color-300: #90C6E0;
  --color-400: #66ACCC;
  --color-500: #448EB1;
  --color-600: #3A6F87;
  --color-700: #2E5160;
  --color-800: #22363F;
  --color-900: #162227;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  sky-blue: {
    50: '#F2F9FD',
    100: '#DDF0F8',
    200: '#BDDFEF',
    300: '#90C6E0',
    400: '#66ACCC',
    500: '#448EB1',
    600: '#3A6F87',
    700: '#2E5160',
    800: '#22363F',
    900: '#162227',
  },
}

$base: #91CBE5;
$base-ink: #141310;
$base-50: #F2F9FD;
$base-100: #DDF0F8;
$base-200: #BDDFEF;
$base-300: #90C6E0;
$base-400: #66ACCC;
$base-500: #448EB1;
$base-600: #3A6F87;
$base-700: #2E5160;
$base-800: #22363F;
$base-900: #162227;
$base-hover: #53ADD7;
$base-subtle: #E1EEF4;

{
    "color": {
        "base": {
            "value": "#91CBE5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F9FD",
                "type": "color"
            },
            "100": {
                "value": "#DDF0F8",
                "type": "color"
            },
            "200": {
                "value": "#BDDFEF",
                "type": "color"
            },
            "300": {
                "value": "#90C6E0",
                "type": "color"
            },
            "400": {
                "value": "#66ACCC",
                "type": "color"
            },
            "500": {
                "value": "#448EB1",
                "type": "color"
            },
            "600": {
                "value": "#3A6F87",
                "type": "color"
            },
            "700": {
                "value": "#2E5160",
                "type": "color"
            },
            "800": {
                "value": "#22363F",
                "type": "color"
            },
            "900": {
                "value": "#162227",
                "type": "color"
            }
        }
    }
}