#281D63#281D63

#281D63 is a dark, moderate blue. Relative luminance 0.022; OKLCH L 29.3% C 0.117 H 283.6°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#281D63
RGB	rgb(40, 29, 99)
HSL	hsl(249, 55%, 25%)
HSV	hsv(249, 71%, 39%)
CMYK	cmyk(59.6%, 70.7%, 0%, 61.2%)
CIE-LAB	lab(16.65, 26.64, -39.71)
CIE-LCH	lch(16.65, 47.82, 303.85°)
OKLab	oklab(29.29% 0.0276 -0.1142)
OKLCH	oklch(29.29% 0.117 283.6)
XYZ	xyz(3.5659, 2.2305, 12.0446)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D63 #58631D

analogous

#1D3563 #281D63 #4B1D63

triadic

#281D63 #63281D #1D6328

tetradic

#281D63 #631D35 #58631D #1D634B

square

#281D63 #631D35 #58631D #1D634B

split-complementary

#281D63 #634B1D #35631D

monochromatic

#0A0718 #150F34 #281D63 #3B2B92 #4E39C2

Accessibility & contrast

On white

14.52

#281D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#281D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D63

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D63	#FFFFFF	#000000	##FFFFFF
##281D63	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B65

Deuteranopia (green-blind)

#002762

Tritanopia (blue-blind)

#0B2F3D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #281d63;
/* rgb */ color: rgb(40, 29, 99);
/* oklch */ color: oklch(29.3% 0.117 283.6);

Tailwind

colors: {
  custom: {
    50: '#695a90',
    500: '#281d63',
    950: '#000000',
  },
}

SCSS

$custom: #281d63;
$custom-light: #695a90;
$custom-dark: #000000;

JSON

{
  "hex": "#281d63",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 99
  },
  "hsl": {
    "h": 249.429,
    "s": 54.688,
    "l": 25.098
  },
  "oklch": {
    "l": 0.29286,
    "c": 0.11747,
    "h": 283.6
  },
  "luminance": 0.02231
}

Semantic roles & 50–950 ramp

primary

#281D63

secondary

#8B9844

accent

#DE4AC7

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#07040D

muted

#7A797D

Preview Lab

Preview with #281D63

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

Preview Lab → · Contrast checker → · Palette generator →