#231F56#231F56

#231F56 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 28.0% C 0.096 H 281.5°. Best body text is #FFFFFF at 14.98:1 contrast (WCAG AA passes).

Color values

HEX	#231F56
RGB	rgb(35, 31, 86)
HSL	hsl(244, 47%, 23%)
HSV	hsv(244, 64%, 34%)
CMYK	cmyk(59.3%, 64%, 0%, 66.3%)
CIE-LAB	lab(15.53, 19.64, -32.88)
CIE-LCH	lch(15.53, 38.29, 300.85°)
OKLab	oklab(27.99% 0.0191 -0.0943)
OKLCH	oklch(27.99% 0.096 281.5)
XYZ	xyz(2.8623, 2.0090, 9.0392)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231F56 #52561F

analogous

#1F3656 #231F56 #3E1F56

triadic

#231F56 #56231F #1F5623

tetradic

#231F56 #561F36 #52561F #1F563E

square

#231F56 #561F36 #52561F #1F563E

split-complementary

#231F56 #563E1F #36561F

monochromatic

#090816 #110F29 #231F56 #352F83 #483FB0

Accessibility & contrast

On white

14.98

#231F56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#231F56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231F56

14.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231F56	#FFFFFF	#000000	##FFFFFF
##231F56	1.00	14.98	1.40	14.98
#FFFFFF	14.98	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002958

Deuteranopia (green-blind)

#002555

Tritanopia (blue-blind)

#0B2C37

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #231f56;
/* rgb */ color: rgb(35, 31, 86);
/* oklch */ color: oklch(28.0% 0.096 281.5);

Tailwind

colors: {
  custom: {
    50: '#635a86',
    500: '#231f56',
    950: '#000000',
  },
}

SCSS

$custom: #231f56;
$custom-light: #635a86;
$custom-dark: #000000;

JSON

{
  "hex": "#231f56",
  "rgb": {
    "r": 35,
    "g": 31,
    "b": 86
  },
  "hsl": {
    "h": 244.364,
    "s": 47.009,
    "l": 22.941
  },
  "oklch": {
    "l": 0.2799,
    "c": 0.09619,
    "h": 281.5
  },
  "luminance": 0.02009
}

Semantic roles & 50–950 ramp

primary

#231F56

secondary

#868B46

accent

#D751CD

background

#F6F5F8

surface

#EBE9EF

border

#C6C5CA

text

#06040B

muted

#7A797C

Preview Lab

Preview with #231F56

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

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