#281D83#281D83

#281D83 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.160 H 277.5°. Best body text is #FFFFFF at 13.18:1 contrast (WCAG AA passes).

Color values

HEX	#281D83
RGB	rgb(40, 29, 131)
HSL	hsl(246, 64%, 31%)
HSV	hsv(246, 78%, 51%)
CMYK	cmyk(69.5%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(19.92, 37.52, -55.00)
CIE-LCH	lch(19.92, 66.58, 304.30°)
OKLab	oklab(32.6% 0.021 -0.1589)
OKLCH	oklch(32.6% 0.16 277.5)
XYZ	xyz(5.4098, 2.9681, 21.7561)
Luminance	0.0297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D83 #78831D

analogous

#1D4583 #281D83 #5B1D83

triadic

#281D83 #83281D #1D8328

tetradic

#281D83 #831D45 #78831D #1D835B

square

#281D83 #831D45 #78831D #1D835B

split-complementary

#281D83 #835B1D #45831D

monochromatic

#09071F #191251 #281D83 #3728B5 #5445D6

Accessibility & contrast

On white

13.18

#281D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D83

13.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D83	#FFFFFF	#000000	##FFFFFF
##281D83	1.00	13.18	1.59	13.18
#FFFFFF	13.18	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003486

Deuteranopia (green-blind)

#002C81

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281d83;
/* rgb */ color: rgb(40, 29, 131);
/* oklch */ color: oklch(32.6% 0.160 277.5);

Tailwind

colors: {
  custom: {
    50: '#705ba8',
    500: '#281d83',
    950: '#000000',
  },
}

SCSS

$custom: #281d83;
$custom-light: #705ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#281d83",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 246.471,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.326,
    "c": 0.16029,
    "h": 277.5
  },
  "luminance": 0.02969
}

Semantic roles & 50–950 ramp

primary

#281D83

secondary

#AAB646

accent

#E741D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281D83

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

Preview Lab → · Contrast checker → · Palette generator →