#281D7D#281D7D

#281D7D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.153 H 278.5°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#281D7D
RGB	rgb(40, 29, 125)
HSL	hsl(247, 62%, 30%)
HSV	hsv(247, 77%, 49%)
CMYK	cmyk(68%, 76.8%, 0%, 51%)
CIE-LAB	lab(19.27, 35.52, -52.27)
CIE-LCH	lch(19.27, 63.20, 304.20°)
OKLab	oklab(31.95% 0.0225 -0.1509)
OKLCH	oklch(31.95% 0.153 278.5)
XYZ	xyz(5.0149, 2.8101, 19.6762)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D7D #727D1D

analogous

#1D427D #281D7D #581D7D

triadic

#281D7D #7D281D #1D7D28

tetradic

#281D7D #7D1D42 #727D1D #1D7D58

square

#281D7D #7D1D42 #727D1D #1D7D58

split-complementary

#281D7D #7D581D #427D1D

monochromatic

#08061A #18114B #281D7D #3829AF #5241D3

Accessibility & contrast

On white

13.44

#281D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#281D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D7D

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D7D	#FFFFFF	#000000	##FFFFFF
##281D7D	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003280

Deuteranopia (green-blind)

#002B7B

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281d7d;
/* rgb */ color: rgb(40, 29, 125);
/* oklch */ color: oklch(31.9% 0.153 278.5);

Tailwind

colors: {
  custom: {
    50: '#6f5ba4',
    500: '#281d7d',
    950: '#000000',
  },
}

SCSS

$custom: #281d7d;
$custom-light: #6f5ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#281d7d",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 125
  },
  "hsl": {
    "h": 246.875,
    "s": 62.338,
    "l": 30.196
  },
  "oklch": {
    "l": 0.31948,
    "c": 0.15259,
    "h": 278.5
  },
  "luminance": 0.02811
}

Semantic roles & 50–950 ramp

primary

#281D7D

secondary

#A4B145

accent

#E542D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281D7D

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

Preview Lab → · Contrast checker → · Palette generator →