#281D74#281D74

#281D74 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.141 H 280.0°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#281D74
RGB	rgb(40, 29, 116)
HSL	hsl(248, 60%, 28%)
HSV	hsv(248, 75%, 45%)
CMYK	cmyk(65.5%, 75%, 0%, 54.5%)
CIE-LAB	lab(18.32, 32.48, -48.06)
CIE-LCH	lch(18.32, 58.00, 304.05°)
OKLab	oklab(30.99% 0.0245 -0.1386)
OKLCH	oklch(30.99% 0.141 280)
XYZ	xyz(4.4658, 2.5905, 16.7843)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D74 #69741D

analogous

#1D3D74 #281D74 #531D74

triadic

#281D74 #74281D #1D7428

tetradic

#281D74 #741D3D #69741D #1D7453

square

#281D74 #741D3D #69741D #1D7453

split-complementary

#281D74 #74531D #3D741D

monochromatic

#080618 #171143 #281D74 #3929A5 #4F3DCE

Accessibility & contrast

On white

13.83

#281D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#281D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D74

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D74	#FFFFFF	#000000	##FFFFFF
##281D74	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003077

Deuteranopia (green-blind)

#002972

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281d74;
/* rgb */ color: rgb(40, 29, 116);
/* oklch */ color: oklch(31.0% 0.141 280.0);

Tailwind

colors: {
  custom: {
    50: '#6d5a9d',
    500: '#281d74',
    950: '#000000',
  },
}

SCSS

$custom: #281d74;
$custom-light: #6d5a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#281d74",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 247.586,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30994,
    "c": 0.14079,
    "h": 280
  },
  "luminance": 0.02591
}

Semantic roles & 50–950 ramp

primary

#281D74

secondary

#9CA845

accent

#E345CF

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281D74

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

Preview Lab → · Contrast checker → · Palette generator →