#4255C7#4255C7

#4255C7 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.178 H 271.3°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#4255C7
RGB	rgb(66, 85, 199)
HSL	hsl(231, 54%, 52%)
HSV	hsv(231, 67%, 78%)
CMYK	cmyk(66.8%, 57.3%, 0%, 22%)
CIE-LAB	lab(40.86, 29.84, -61.69)
CIE-LCH	lch(40.86, 68.53, 295.81°)
OKLab	oklab(50.17% 0.0041 -0.1776)
OKLCH	oklch(50.17% 0.178 271.3)
XYZ	xyz(15.8006, 11.7773, 55.4623)
Luminance	0.1178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255C7 #C7B442

analogous

#4297C7 #4255C7 #7242C7

triadic

#4255C7 #C74255 #55C742

tetradic

#4255C7 #C74297 #C7B442 #42C772

square

#4255C7 #C74297 #C7B442 #42C772

split-complementary

#4255C7 #C77242 #97C742

monochromatic

#212C6E #2F3E9D #4255C7 #717FD5 #A0AAE3

Accessibility & contrast

On white

6.26

#4255C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#4255C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255C7

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255C7	#FFFFFF	#000000	##FFFFFF
##4255C7	1.00	6.26	3.36	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CB

Deuteranopia (green-blind)

#005BC5

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4255c7;
/* rgb */ color: rgb(66, 85, 199);
/* oklch */ color: oklch(50.2% 0.178 271.3);

Tailwind

colors: {
  custom: {
    50: '#8684d9',
    500: '#4255c7',
    950: '#000000',
  },
}

SCSS

$custom: #4255c7;
$custom-light: #8684d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4255c7",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 199
  },
  "hsl": {
    "h": 231.429,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.50173,
    "c": 0.17766,
    "h": 271.3
  },
  "luminance": 0.11779
}

Semantic roles & 50–950 ramp

primary

#4255C7

secondary

#D0C795

accent

#C94ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4255C7

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

Preview Lab → · Contrast checker → · Palette generator →