#4255C8#4255C8

#4255C8 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.3% C 0.179 H 271.3°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#4255C8
RGB	rgb(66, 85, 200)
HSL	hsl(231, 55%, 52%)
HSV	hsv(231, 67%, 78%)
CMYK	cmyk(67%, 57.5%, 0%, 21.6%)
CIE-LAB	lab(40.93, 30.19, -62.15)
CIE-LCH	lch(40.93, 69.09, 295.91°)
OKLab	oklab(50.25% 0.0041 -0.1789)
OKLCH	oklch(50.25% 0.179 271.3)
XYZ	xyz(15.9171, 11.8239, 56.0758)
Luminance	0.1182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255C8 #C8B542

analogous

#4298C8 #4255C8 #7242C8

triadic

#4255C8 #C84255 #55C842

tetradic

#4255C8 #C84298 #C8B542 #42C872

square

#4255C8 #C84298 #C8B542 #42C872

split-complementary

#4255C8 #C87242 #98C842

monochromatic

#202C6F #2E3E9F #4255C8 #7180D6 #A1AAE4

Accessibility & contrast

On white

6.24

#4255C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#4255C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255C8

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255C8	#FFFFFF	#000000	##FFFFFF
##4255C8	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CC

Deuteranopia (green-blind)

#005BC6

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4255c8;
/* rgb */ color: rgb(66, 85, 200);
/* oklch */ color: oklch(50.3% 0.179 271.3);

Tailwind

colors: {
  custom: {
    50: '#8684da',
    500: '#4255c8',
    950: '#000000',
  },
}

SCSS

$custom: #4255c8;
$custom-light: #8684da;
$custom-dark: #000000;

JSON

{
  "hex": "#4255c8",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 200
  },
  "hsl": {
    "h": 231.493,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.50252,
    "c": 0.179,
    "h": 271.3
  },
  "luminance": 0.11825
}

Semantic roles & 50–950 ramp

primary

#4255C8

secondary

#D0C896

accent

#C94ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4255C8

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

Preview Lab → · Contrast checker → · Palette generator →