#231871#231871

#231871 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.5% C 0.143 H 278.5°. Best body text is #FFFFFF at 14.58:1 contrast (WCAG AA passes).

Color values

HEX	#231871
RGB	rgb(35, 24, 113)
HSL	hsl(247, 65%, 27%)
HSV	hsv(247, 79%, 44%)
CMYK	cmyk(69%, 78.8%, 0%, 55.7%)
CIE-LAB	lab(16.52, 33.75, -49.11)
CIE-LCH	lch(16.52, 59.59, 304.50°)
OKLab	oklab(29.51% 0.0213 -0.1418)
OKLCH	oklch(29.51% 0.143 278.5)
XYZ	xyz(3.9994, 2.2025, 15.8339)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231871 #667118

analogous

#183A71 #231871 #501871

triadic

#231871 #712318 #187123

tetradic

#231871 #71183A #667118 #187150

square

#231871 #71183A #667118 #187150

split-complementary

#231871 #715018 #3A7118

monochromatic

#080519 #130D3F #231871 #3323A3 #4430D3

Accessibility & contrast

On white

14.58

#231871 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#231871 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231871

14.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231871	#FFFFFF	#000000	##FFFFFF
##231871	1.00	14.58	1.44	14.58
#FFFFFF	14.58	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C74

Deuteranopia (green-blind)

#00256F

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #231871;
/* rgb */ color: rgb(35, 24, 113);
/* oklch */ color: oklch(29.5% 0.143 278.5);

Tailwind

colors: {
  custom: {
    50: '#6a579b',
    500: '#231871',
    950: '#000000',
  },
}

SCSS

$custom: #231871;
$custom-light: #6a579b;
$custom-dark: #000000;

JSON

{
  "hex": "#231871",
  "rgb": {
    "r": 35,
    "g": 24,
    "b": 113
  },
  "hsl": {
    "h": 247.416,
    "s": 64.964,
    "l": 26.863
  },
  "oklch": {
    "l": 0.29508,
    "c": 0.14341,
    "h": 278.5
  },
  "luminance": 0.02203
}

Semantic roles & 50–950 ramp

primary

#231871

secondary

#9AA63E

accent

#E840D3

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231871

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

Preview Lab → · Contrast checker → · Palette generator →