#427BBC#427BBC

#427BBC is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.4% C 0.117 H 253.2°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#427BBC
RGB	rgb(66, 123, 188)
HSL	hsl(212, 48%, 50%)
HSV	hsv(212, 65%, 74%)
CMYK	cmyk(64.9%, 34.6%, 0%, 26.3%)
CIE-LAB	lab(50.63, 2.05, -39.68)
CIE-LCH	lch(50.63, 39.73, 272.96°)
OKLab	oklab(57.44% -0.034 -0.1124)
OKLCH	oklch(57.44% 0.117 253.2)
XYZ	xyz(18.4035, 18.9532, 50.2557)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BBC #BC8342

analogous

#42B8BC #427BBC #4642BC

triadic

#427BBC #BC427B #7BBC42

tetradic

#427BBC #BC42B8 #BC8342 #42BC46

square

#427BBC #BC42B8 #BC8342 #42BC46

split-complementary

#427BBC #BC4642 #B8BC42

monochromatic

#224061 #325D8F #427BBC #6F9BCC #9CBADC

Accessibility & contrast

On white

4.38

#427BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#427BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BBC

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BBC	#FFFFFF	#000000	##000000
##427BBC	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4E73BB

Tritanopia (blue-blind)

#008A93

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427bbc;
/* rgb */ color: rgb(66, 123, 188);
/* oklch */ color: oklch(57.4% 0.117 253.2);

Tailwind

colors: {
  custom: {
    50: '#82a0d0',
    500: '#427bbc',
    950: '#000000',
  },
}

SCSS

$custom: #427bbc;
$custom-light: #82a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#427bbc",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 188
  },
  "hsl": {
    "h": 211.967,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5744,
    "c": 0.11748,
    "h": 253.2
  },
  "luminance": 0.18955
}

Semantic roles & 50–950 ramp

primary

#427BBC

secondary

#C9AF91

accent

#9850D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #427BBC

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

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