#281A5B#281A5B

#281A5B is a dark, moderate violet. Relative luminance 0.019; OKLCH L 28.0% C 0.110 H 286.8°. Best body text is #FFFFFF at 15.12:1 contrast (WCAG AA passes).

Color values

HEX	#281A5B
RGB	rgb(40, 26, 91)
HSL	hsl(253, 56%, 23%)
HSV	hsv(253, 71%, 36%)
CMYK	cmyk(56%, 71.4%, 0%, 64.3%)
CIE-LAB	lab(15.20, 25.84, -36.77)
CIE-LCH	lch(15.20, 44.94, 305.10°)
OKLab	oklab(28% 0.032 -0.1055)
OKLCH	oklch(28% 0.11 286.8)
XYZ	xyz(3.1322, 1.9451, 10.1059)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A5B #4D5B1A

analogous

#1A2C5B #281A5B #481A5B

triadic

#281A5B #5B281A #1A5B28

tetradic

#281A5B #5B1A2C #4D5B1A #1A5B48

square

#281A5B #5B1A2C #4D5B1A #1A5B48

split-complementary

#281A5B #5B481A #2C5B1A

monochromatic

#0A0718 #130C2B #281A5B #3D288B #5235BA

Accessibility & contrast

On white

15.12

#281A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#281A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A5B

15.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A5B	#FFFFFF	#000000	##FFFFFF
##281A5B	1.00	15.12	1.39	15.12
#FFFFFF	15.12	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285D

Deuteranopia (green-blind)

#00245A

Tritanopia (blue-blind)

#142A38

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #281a5b;
/* rgb */ color: rgb(40, 26, 91);
/* oklch */ color: oklch(28.0% 0.110 286.8);

Tailwind

colors: {
  custom: {
    50: '#68578a',
    500: '#281a5b',
    950: '#000000',
  },
}

SCSS

$custom: #281a5b;
$custom-light: #68578a;
$custom-dark: #000000;

JSON

{
  "hex": "#281a5b",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 91
  },
  "hsl": {
    "h": 252.923,
    "s": 55.556,
    "l": 22.941
  },
  "oklch": {
    "l": 0.28004,
    "c": 0.11026,
    "h": 286.8
  },
  "luminance": 0.01945
}

Semantic roles & 50–950 ramp

primary

#281A5B

secondary

#809140

accent

#DF49BF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06030C

muted

#7A787D

Preview Lab

Preview with #281A5B

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

Preview Lab → · Contrast checker → · Palette generator →