#231F84#231F84

#231F84 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.161 H 274.6°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#231F84
RGB	rgb(35, 31, 132)
HSL	hsl(242, 62%, 32%)
HSV	hsv(242, 77%, 52%)
CMYK	cmyk(73.5%, 76.5%, 0%, 48.2%)
CIE-LAB	lab(20.05, 36.17, -55.41)
CIE-LCH	lch(20.05, 66.18, 303.13°)
OKLab	oklab(32.63% 0.0128 -0.1603)
OKLCH	oklch(32.63% 0.161 274.6)
XYZ	xyz(5.3466, 3.0027, 22.1231)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F84 #80841F

analogous

#1F4E84 #231F84 #561F84

triadic

#231F84 #84231F #1F8423

tetradic

#231F84 #841F4E #80841F #1F8456

square

#231F84 #841F4E #80841F #1F8456

split-complementary

#231F84 #84561F #4E841F

monochromatic

#090821 #161352 #231F84 #302BB6 #4F49D4

Accessibility & contrast

On white

13.12

#231F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#231F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F84

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F84	#FFFFFF	#000000	##FFFFFF
##231F84	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003587

Deuteranopia (green-blind)

#002C82

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #231f84;
/* rgb */ color: rgb(35, 31, 132);
/* oklch */ color: oklch(32.6% 0.161 274.6);

Tailwind

colors: {
  custom: {
    50: '#6e5ca9',
    500: '#231f84',
    950: '#000000',
  },
}

SCSS

$custom: #231f84;
$custom-light: #6e5ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#231f84",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 132
  },
  "hsl": {
    "h": 242.376,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32633,
    "c": 0.16077,
    "h": 274.6
  },
  "luminance": 0.03003
}

Semantic roles & 50–950 ramp

primary

#231F84

secondary

#B2B748

accent

#E543DF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#080410

muted

#7B797F

Preview Lab

Preview with #231F84

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

Preview Lab → · Contrast checker → · Palette generator →