#281E8A#281E8A

#281E8A is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.168 H 276.4°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#281E8A
RGB	rgb(40, 30, 138)
HSL	hsl(246, 64%, 33%)
HSV	hsv(246, 78%, 54%)
CMYK	cmyk(71%, 78.3%, 0%, 45.9%)
CIE-LAB	lab(20.88, 39.28, -57.80)
CIE-LCH	lch(20.88, 69.89, 304.20°)
OKLab	oklab(33.51% 0.0188 -0.1671)
OKLCH	oklch(33.51% 0.168 276.4)
XYZ	xyz(5.9253, 3.2141, 24.3479)
Luminance	0.0321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E8A #808A1E

analogous

#1E4A8A #281E8A #5E1E8A

triadic

#281E8A #8A281E #1E8A28

tetradic

#281E8A #8A1E4A #808A1E #1E8A5E

square

#281E8A #8A1E4A #808A1E #1E8A5E

split-complementary

#281E8A #8A5E1E #4A8A1E

monochromatic

#0B0825 #191358 #281E8A #3729BC #584BD8

Accessibility & contrast

On white

12.78

#281E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#281E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E8A

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E8A	#FFFFFF	#000000	##FFFFFF
##281E8A	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002D88

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281e8a;
/* rgb */ color: rgb(40, 30, 138);
/* oklch */ color: oklch(33.5% 0.168 276.4);

Tailwind

colors: {
  custom: {
    50: '#725cad',
    500: '#281e8a',
    950: '#000000',
  },
}

SCSS

$custom: #281e8a;
$custom-light: #725cad;
$custom-dark: #000000;

JSON

{
  "hex": "#281e8a",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 138
  },
  "hsl": {
    "h": 245.556,
    "s": 64.286,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33509,
    "c": 0.16813,
    "h": 276.4
  },
  "luminance": 0.03215
}

Semantic roles & 50–950 ramp

primary

#281E8A

secondary

#B0BA4A

accent

#E741D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281E8A

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

Preview Lab → · Contrast checker → · Palette generator →