#281C8D#281C8D

#281C8D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.174 H 276.3°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#281C8D
RGB	rgb(40, 28, 141)
HSL	hsl(246, 67%, 33%)
HSV	hsv(246, 80%, 55%)
CMYK	cmyk(71.6%, 80.1%, 0%, 44.7%)
CIE-LAB	lab(20.84, 41.34, -59.74)
CIE-LCH	lch(20.84, 72.65, 304.68°)
OKLab	oklab(33.58% 0.019 -0.1727)
OKLCH	oklch(33.58% 0.174 276.3)
XYZ	xyz(6.0965, 3.2041, 25.4913)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C8D #818D1C

analogous

#1C488D #281C8D #601C8D

triadic

#281C8D #8D281C #1C8D28

tetradic

#281C8D #8D1C48 #818D1C #1C8D60

square

#281C8D #8D1C48 #818D1C #1C8D60

split-complementary

#281C8D #8D601C #488D1C

monochromatic

#0B0827 #1A125A #281C8D #3626C0 #5849DB

Accessibility & contrast

On white

12.80

#281C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#281C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C8D

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C8D	#FFFFFF	#000000	##FFFFFF
##281C8D	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002D8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281c8d;
/* rgb */ color: rgb(40, 28, 141);
/* oklch */ color: oklch(33.6% 0.174 276.3);

Tailwind

colors: {
  custom: {
    50: '#735bb0',
    500: '#281c8d',
    950: '#000000',
  },
}

SCSS

$custom: #281c8d;
$custom-light: #735bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#281c8d",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 141
  },
  "hsl": {
    "h": 246.372,
    "s": 66.864,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33582,
    "c": 0.17373,
    "h": 276.3
  },
  "luminance": 0.03205
}

Semantic roles & 50–950 ramp

primary

#281C8D

secondary

#B0BD48

accent

#EA3ED8

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281C8D

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

Preview Lab → · Contrast checker → · Palette generator →