#4231B8#4231B8

#4231B8 is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.9% C 0.200 H 279.5°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#4231B8
RGB	rgb(66, 49, 184)
HSL	hsl(248, 58%, 46%)
HSV	hsv(248, 73%, 72%)
CMYK	cmyk(64.1%, 73.4%, 0%, 27.8%)
CIE-LAB	lab(31.38, 46.56, -68.40)
CIE-LCH	lch(31.38, 82.75, 304.24°)
OKLab	oklab(42.87% 0.0329 -0.1974)
OKLCH	oklch(42.87% 0.2 279.5)
XYZ	xyz(11.9940, 6.8146, 46.0214)
Luminance	0.0682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4231B8 #A7B831

analogous

#3163B8 #4231B8 #8631B8

triadic

#4231B8 #B84231 #31B842

tetradic

#4231B8 #B83163 #A7B831 #31B886

square

#4231B8 #B83163 #A7B831 #31B886

split-complementary

#4231B8 #B88631 #63B831

monochromatic

#1F1757 #312488 #4231B8 #6455D2 #9085DE

Accessibility & contrast

On white

8.89

#4231B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#4231B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4231B8

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4231B8	#FFFFFF	#000000	##FFFFFF
##4231B8	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBC

Deuteranopia (green-blind)

#0044B6

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4231b8;
/* rgb */ color: rgb(66, 49, 184);
/* oklch */ color: oklch(42.9% 0.200 279.5);

Tailwind

colors: {
  custom: {
    50: '#856ccf',
    500: '#4231b8',
    950: '#000000',
  },
}

SCSS

$custom: #4231b8;
$custom-light: #856ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#4231b8",
  "rgb": {
    "r": 66,
    "g": 49,
    "b": 184
  },
  "hsl": {
    "h": 247.556,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.4287,
    "c": 0.20015,
    "h": 279.5
  },
  "luminance": 0.06816
}

Semantic roles & 50–950 ramp

primary

#4231B8

secondary

#BEC87D

accent

#E147CE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4231B8

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

Preview Lab → · Contrast checker → · Palette generator →