#427AB0#427AB0

#427AB0 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.103 H 249.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#427AB0
RGB	rgb(66, 122, 176)
HSL	hsl(209, 45%, 47%)
HSV	hsv(209, 63%, 69%)
CMYK	cmyk(62.5%, 30.7%, 0%, 31%)
CIE-LAB	lab(49.75, -1.47, -34.14)
CIE-LCH	lch(49.75, 34.18, 267.53°)
OKLab	oklab(56.56% -0.0364 -0.0963)
OKLCH	oklch(56.56% 0.103 249.3)
XYZ	xyz(17.0399, 18.2103, 43.6828)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AB0 #B07842

analogous

#42B0AF #427AB0 #4243B0

triadic

#427AB0 #B0427A #7AB042

tetradic

#427AB0 #AF42B0 #B07842 #43B042

square

#427AB0 #AF42B0 #B07842 #43B042

split-complementary

#427AB0 #B04243 #B0AF42

monochromatic

#213C57 #315B83 #427AB0 #6998C7 #95B7D7

Accessibility & contrast

On white

4.52

#427AB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#427AB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427AB0

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AB0	#FFFFFF	#000000	##000000
##427AB0	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637CB2

Deuteranopia (green-blind)

#5472AF

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #427ab0;
/* rgb */ color: rgb(66, 122, 176);
/* oklch */ color: oklch(56.6% 0.103 249.3);

Tailwind

colors: {
  custom: {
    50: '#80a0c8',
    500: '#427ab0',
    950: '#000000',
  },
}

SCSS

$custom: #427ab0;
$custom-light: #80a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#427ab0",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 176
  },
  "hsl": {
    "h": 209.455,
    "s": 45.455,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56555,
    "c": 0.10297,
    "h": 249.3
  },
  "luminance": 0.18212
}

Semantic roles & 50–950 ramp

primary

#427AB0

secondary

#C3A68B

accent

#9353D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #427AB0

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →