#4255BE#4255BE

#4255BE is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.5% C 0.165 H 271.3°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#4255BE
RGB	rgb(66, 85, 190)
HSL	hsl(231, 49%, 50%)
HSV	hsv(231, 65%, 75%)
CMYK	cmyk(65.3%, 55.3%, 0%, 25.5%)
CIE-LAB	lab(40.20, 26.67, -57.53)
CIE-LCH	lch(40.20, 63.41, 294.88°)
OKLab	oklab(49.47% 0.0038 -0.1654)
OKLCH	oklch(49.47% 0.165 271.3)
XYZ	xyz(14.7864, 11.3716, 50.1209)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255BE #BEAB42

analogous

#4293BE #4255BE #6D42BE

triadic

#4255BE #BE4255 #55BE42

tetradic

#4255BE #BE4293 #BEAB42 #42BE6D

square

#4255BE #BE4293 #BEAB42 #42BE6D

split-complementary

#4255BE #BE6D42 #93BE42

monochromatic

#222C63 #324091 #4255BE #707ECE #9DA7DD

Accessibility & contrast

On white

6.41

#4255BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#4255BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255BE

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255BE	#FFFFFF	#000000	##FFFFFF
##4255BE	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C2

Deuteranopia (green-blind)

#0059BC

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4255be;
/* rgb */ color: rgb(66, 85, 190);
/* oklch */ color: oklch(49.5% 0.165 271.3);

Tailwind

colors: {
  custom: {
    50: '#8484d2',
    500: '#4255be',
    950: '#000000',
  },
}

SCSS

$custom: #4255be;
$custom-light: #8484d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4255be",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 190
  },
  "hsl": {
    "h": 230.806,
    "s": 48.819,
    "l": 50.196
  },
  "oklch": {
    "l": 0.4947,
    "c": 0.16541,
    "h": 271.3
  },
  "luminance": 0.11373
}

Semantic roles & 50–950 ramp

primary

#4255BE

secondary

#CAC192

accent

#C34FD8

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #4255BE

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

Preview Lab → · Contrast checker → · Palette generator →