#281C84#281C84

#281C84 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.6% C 0.163 H 277.6°. Best body text is #FFFFFF at 13.21:1 contrast (WCAG AA passes).

Color values

HEX	#281C84
RGB	rgb(40, 28, 132)
HSL	hsl(247, 65%, 31%)
HSV	hsv(247, 79%, 52%)
CMYK	cmyk(69.7%, 78.8%, 0%, 48.2%)
CIE-LAB	lab(19.83, 38.41, -55.77)
CIE-LCH	lch(19.83, 67.72, 304.55°)
OKLab	oklab(32.57% 0.0214 -0.1611)
OKLCH	oklch(32.57% 0.163 277.6)
XYZ	xyz(5.4538, 2.9471, 22.1068)
Luminance	0.0295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C84 #78841C

analogous

#1C4484 #281C84 #5C1C84

triadic

#281C84 #84281C #1C8428

tetradic

#281C84 #841C44 #78841C #1C845C

square

#281C84 #841C44 #78841C #1C845C

split-complementary

#281C84 #845C1C #44841C

monochromatic

#09071F #191152 #281C84 #3727B6 #5443D7

Accessibility & contrast

On white

13.21

#281C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C84

13.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C84	#FFFFFF	#000000	##FFFFFF
##281C84	1.00	13.21	1.59	13.21
#FFFFFF	13.21	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003487

Deuteranopia (green-blind)

#002C82

Tritanopia (blue-blind)

#003B4F

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281c84;
/* rgb */ color: rgb(40, 28, 132);
/* oklch */ color: oklch(32.6% 0.163 277.6);

Tailwind

colors: {
  custom: {
    50: '#705ba9',
    500: '#281c84',
    950: '#000000',
  },
}

SCSS

$custom: #281c84;
$custom-light: #705ba9;
$custom-dark: #000000;

JSON

{
  "hex": "#281c84",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 132
  },
  "hsl": {
    "h": 246.923,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32573,
    "c": 0.16255,
    "h": 277.6
  },
  "luminance": 0.02948
}

Semantic roles & 50–950 ramp

primary

#281C84

secondary

#AAB745

accent

#E840D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281C84

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

Preview Lab → · Contrast checker → · Palette generator →