#231F76#231F76

#231F76 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.142 H 276.2°. Best body text is #FFFFFF at 13.73:1 contrast (WCAG AA passes).

Color values

HEX	#231F76
RGB	rgb(35, 31, 118)
HSL	hsl(243, 58%, 29%)
HSV	hsv(243, 74%, 46%)
CMYK	cmyk(70.3%, 73.7%, 0%, 53.7%)
CIE-LAB	lab(18.56, 31.27, -48.97)
CIE-LCH	lch(18.56, 58.10, 302.56°)
OKLab	oklab(31.12% 0.0155 -0.1414)
OKLCH	oklch(31.12% 0.142 276.2)
XYZ	xyz(4.4521, 2.6449, 17.4119)
Luminance	0.0265 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F76 #72761F

analogous

#1F4776 #231F76 #4F1F76

triadic

#231F76 #76231F #1F7623

tetradic

#231F76 #761F47 #72761F #1F764F

square

#231F76 #761F47 #72761F #1F764F

split-complementary

#231F76 #764F1F #47761F

monochromatic

#070618 #151246 #231F76 #312CA6 #4842CD

Accessibility & contrast

On white

13.73

#231F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#231F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F76

13.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F76	#FFFFFF	#000000	##FFFFFF
##231F76	1.00	13.73	1.53	13.73
#FFFFFF	13.73	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003179

Deuteranopia (green-blind)

#002974

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #231f76;
/* rgb */ color: rgb(35, 31, 118);
/* oklch */ color: oklch(31.1% 0.142 276.2);

Tailwind

colors: {
  custom: {
    50: '#6b5b9e',
    500: '#231f76',
    950: '#000000',
  },
}

SCSS

$custom: #231f76;
$custom-light: #6b5b9e;
$custom-dark: #000000;

JSON

{
  "hex": "#231f76",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 118
  },
  "hsl": {
    "h": 242.759,
    "s": 58.389,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31122,
    "c": 0.14229,
    "h": 276.2
  },
  "luminance": 0.02645
}

Semantic roles & 50–950 ramp

primary

#231F76

secondary

#A5AA47

accent

#E246DA

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #231F76

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

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