#4255CA#4255CA

#4255CA is a mid, vivid blue. Relative luminance 0.119; OKLCH L 50.4% C 0.182 H 271.3°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#4255CA
RGB	rgb(66, 85, 202)
HSL	hsl(232, 56%, 53%)
HSV	hsv(232, 67%, 79%)
CMYK	cmyk(67.3%, 57.9%, 0%, 20.8%)
CIE-LAB	lab(41.09, 30.89, -63.06)
CIE-LCH	lch(41.09, 70.22, 296.10°)
OKLab	oklab(50.41% 0.0042 -0.1816)
OKLCH	oklch(50.41% 0.182 271.3)
XYZ	xyz(16.1523, 11.9180, 57.3148)
Luminance	0.1192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255CA #CAB742

analogous

#4299CA #4255CA #7342CA

triadic

#4255CA #CA4255 #55CA42

tetradic

#4255CA #CA4299 #CAB742 #42CA73

square

#4255CA #CA4299 #CAB742 #42CA73

split-complementary

#4255CA #CA7342 #99CA42

monochromatic

#202B72 #2D3EA2 #4255CA #7280D7 #A2ABE5

Accessibility & contrast

On white

6.21

#4255CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#4255CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255CA

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255CA	#FFFFFF	#000000	##FFFFFF
##4255CA	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #4255ca;
/* rgb */ color: rgb(66, 85, 202);
/* oklch */ color: oklch(50.4% 0.182 271.3);

Tailwind

colors: {
  custom: {
    50: '#8684db',
    500: '#4255ca',
    950: '#000000',
  },
}

SCSS

$custom: #4255ca;
$custom-light: #8684db;
$custom-dark: #000000;

JSON

{
  "hex": "#4255ca",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 202
  },
  "hsl": {
    "h": 231.618,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.50412,
    "c": 0.18169,
    "h": 271.3
  },
  "luminance": 0.1192
}

Semantic roles & 50–950 ramp

primary

#4255CA

secondary

#D1C996

accent

#CA48DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4255CA

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

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