#231F82#231F82

#231F82 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.158 H 274.8°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#231F82
RGB	rgb(35, 31, 130)
HSL	hsl(242, 61%, 32%)
HSV	hsv(242, 76%, 51%)
CMYK	cmyk(73.1%, 76.2%, 0%, 49%)
CIE-LAB	lab(19.84, 35.48, -54.51)
CIE-LCH	lch(19.84, 65.04, 303.06°)
OKLab	oklab(32.41% 0.0132 -0.1576)
OKLCH	oklch(32.41% 0.158 274.8)
XYZ	xyz(5.2111, 2.9485, 21.4093)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F82 #7E821F

analogous

#1F4D82 #231F82 #551F82

triadic

#231F82 #82231F #1F8223

tetradic

#231F82 #821F4D #7E821F #1F8255

square

#231F82 #821F4D #7E821F #1F8255

split-complementary

#231F82 #82551F #4D821F

monochromatic

#08071F #161351 #231F82 #302BB3 #4E48D3

Accessibility & contrast

On white

13.21

#231F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#231F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F82

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F82	#FFFFFF	#000000	##FFFFFF
##231F82	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003485

Deuteranopia (green-blind)

#002B80

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #231f82;
/* rgb */ color: rgb(35, 31, 130);
/* oklch */ color: oklch(32.4% 0.158 274.8);

Tailwind

colors: {
  custom: {
    50: '#6e5ca7',
    500: '#231f82',
    950: '#000000',
  },
}

SCSS

$custom: #231f82;
$custom-light: #6e5ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#231f82",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 130
  },
  "hsl": {
    "h": 242.424,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32413,
    "c": 0.15818,
    "h": 274.8
  },
  "luminance": 0.02949
}

Semantic roles & 50–950 ramp

primary

#231F82

secondary

#B0B548

accent

#E543DE

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231F82

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

Preview Lab → · Contrast checker → · Palette generator →