#4255AC#4255AC

#4255AC is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.140 H 271.0°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#4255AC
RGB	rgb(66, 85, 172)
HSL	hsl(229, 45%, 47%)
HSV	hsv(229, 62%, 67%)
CMYK	cmyk(61.6%, 50.6%, 0%, 32.5%)
CIE-LAB	lab(38.95, 20.34, -48.96)
CIE-LCH	lch(38.95, 53.01, 292.56°)
OKLab	oklab(48.14% 0.0025 -0.1401)
OKLCH	oklch(48.14% 0.14 271)
XYZ	xyz(12.9392, 10.6327, 40.3922)
Luminance	0.1063 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4255AC #AC9942

analogous

#428AAC #4255AC #6442AC

triadic

#4255AC #AC4255 #55AC42

tetradic

#4255AC #AC428A #AC9942 #42AC64

square

#4255AC #AC428A #AC9942 #42AC64

split-complementary

#4255AC #AC6442 #8AAC42

monochromatic

#202954 #313F80 #4255AC #6777C5 #939FD6

Accessibility & contrast

On white

6.72

#4255AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#4255AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4255AC

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4255AC	#FFFFFF	#000000	##FFFFFF
##4255AC	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661AF

Deuteranopia (green-blind)

#0D57AA

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4255ac;
/* rgb */ color: rgb(66, 85, 172);
/* oklch */ color: oklch(48.1% 0.140 271.0);

Tailwind

colors: {
  custom: {
    50: '#8084c5',
    500: '#4255ac',
    950: '#000000',
  },
}

SCSS

$custom: #4255ac;
$custom-light: #8084c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4255ac",
  "rgb": {
    "r": 66,
    "g": 85,
    "b": 172
  },
  "hsl": {
    "h": 229.245,
    "s": 44.538,
    "l": 46.667
  },
  "oklch": {
    "l": 0.48136,
    "c": 0.14016,
    "h": 271
  },
  "luminance": 0.10634
}

Semantic roles & 50–950 ramp

primary

#4255AC

secondary

#C1B789

accent

#BD54D4

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4255AC

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

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