#427BBA#427BBA

#427BBA is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.115 H 252.5°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#427BBA
RGB	rgb(66, 123, 186)
HSL	hsl(212, 48%, 49%)
HSV	hsv(212, 65%, 73%)
CMYK	cmyk(64.5%, 33.9%, 0%, 27.1%)
CIE-LAB	lab(50.53, 1.36, -38.69)
CIE-LCH	lch(50.53, 38.71, 272.01°)
OKLab	oklab(57.33% -0.0345 -0.1096)
OKLCH	oklch(57.33% 0.115 252.5)
XYZ	xyz(18.1894, 18.8676, 49.1281)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BBA #BA8142

analogous

#42B7BA #427BBA #4542BA

triadic

#427BBA #BA427B #7BBA42

tetradic

#427BBA #BA42B7 #BA8142 #42BA45

square

#427BBA #BA42B7 #BA8142 #42BA45

split-complementary

#427BBA #BA4542 #B7BA42

monochromatic

#223F60 #325D8D #427BBA #6E9ACB #9BBADB

Accessibility & contrast

On white

4.40

#427BBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#427BBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BBA

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BBA	#FFFFFF	#000000	##000000
##427BBA	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607FBD

Deuteranopia (green-blind)

#4F73B9

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427bba;
/* rgb */ color: rgb(66, 123, 186);
/* oklch */ color: oklch(57.3% 0.115 252.5);

Tailwind

colors: {
  custom: {
    50: '#82a0cf',
    500: '#427bba',
    950: '#000000',
  },
}

SCSS

$custom: #427bba;
$custom-light: #82a0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#427bba",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 186
  },
  "hsl": {
    "h": 211.5,
    "s": 47.619,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57329,
    "c": 0.11488,
    "h": 252.5
  },
  "luminance": 0.18869
}

Semantic roles & 50–950 ramp

primary

#427BBA

secondary

#C8AD90

accent

#9751D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #427BBA

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

Preview Lab → · Contrast checker → · Palette generator →