#281C70#281C70

#281C70 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.137 H 281.0°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#281C70
RGB	rgb(40, 28, 112)
HSL	hsl(249, 60%, 27%)
HSV	hsv(249, 75%, 44%)
CMYK	cmyk(64.3%, 75%, 0%, 56.1%)
CIE-LAB	lab(17.70, 31.72, -46.50)
CIE-LCH	lch(17.70, 56.29, 304.30°)
OKLab	oklab(30.42% 0.0261 -0.1341)
OKLCH	oklch(30.42% 0.137 281)
XYZ	xyz(4.2140, 2.4512, 15.5772)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C70 #64701C

analogous

#1C3A70 #281C70 #521C70

triadic

#281C70 #70281C #1C7028

tetradic

#281C70 #701C3A #64701C #1C7052

square

#281C70 #701C3A #64701C #1C7052

split-complementary

#281C70 #70521C #3A701C

monochromatic

#090618 #17103F #281C70 #3928A1 #4E39CD

Accessibility & contrast

On white

14.09

#281C70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281C70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C70

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C70	#FFFFFF	#000000	##FFFFFF
##281C70	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E72

Deuteranopia (green-blind)

#00286E

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281c70;
/* rgb */ color: rgb(40, 28, 112);
/* oklch */ color: oklch(30.4% 0.137 281.0);

Tailwind

colors: {
  custom: {
    50: '#6c5a9a',
    500: '#281c70',
    950: '#000000',
  },
}

SCSS

$custom: #281c70;
$custom-light: #6c5a9a;
$custom-dark: #000000;

JSON

{
  "hex": "#281c70",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 112
  },
  "hsl": {
    "h": 248.571,
    "s": 60,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30424,
    "c": 0.13661,
    "h": 281
  },
  "luminance": 0.02451
}

Semantic roles & 50–950 ramp

primary

#281C70

secondary

#97A543

accent

#E345CD

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281C70

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

Preview Lab → · Contrast checker → · Palette generator →