#281D82#281D82

#281D82 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.159 H 277.7°. Best body text is #FFFFFF at 13.22:1 contrast (WCAG AA passes).

Color values

HEX	#281D82
RGB	rgb(40, 29, 130)
HSL	hsl(247, 64%, 31%)
HSV	hsv(247, 78%, 51%)
CMYK	cmyk(69.2%, 77.7%, 0%, 49%)
CIE-LAB	lab(19.81, 37.19, -54.55)
CIE-LCH	lch(19.81, 66.02, 304.29°)
OKLab	oklab(32.49% 0.0213 -0.1576)
OKLCH	oklch(32.49% 0.159 277.7)
XYZ	xyz(5.3424, 2.9411, 21.4009)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D82 #77821D

analogous

#1D4482 #281D82 #5A1D82

triadic

#281D82 #82281D #1D8228

tetradic

#281D82 #821D44 #77821D #1D825A

square

#281D82 #821D44 #77821D #1D825A

split-complementary

#281D82 #825A1D #44821D

monochromatic

#09071E #191250 #281D82 #3728B4 #5444D5

Accessibility & contrast

On white

13.22

#281D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D82

13.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D82	#FFFFFF	#000000	##FFFFFF
##281D82	1.00	13.22	1.59	13.22
#FFFFFF	13.22	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003485

Deuteranopia (green-blind)

#002C80

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281d82;
/* rgb */ color: rgb(40, 29, 130);
/* oklch */ color: oklch(32.5% 0.159 277.7);

Tailwind

colors: {
  custom: {
    50: '#705ba7',
    500: '#281d82',
    950: '#000000',
  },
}

SCSS

$custom: #281d82;
$custom-light: #705ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#281d82",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 130
  },
  "hsl": {
    "h": 246.535,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32491,
    "c": 0.15901,
    "h": 277.7
  },
  "luminance": 0.02942
}

Semantic roles & 50–950 ramp

primary

#281D82

secondary

#A9B546

accent

#E741D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281D82

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

Preview Lab → · Contrast checker → · Palette generator →