#281888#281888

#281888 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.171 H 277.5°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#281888
RGB	rgb(40, 24, 136)
HSL	hsl(249, 70%, 31%)
HSV	hsv(249, 82%, 53%)
CMYK	cmyk(70.6%, 82.4%, 0%, 46.7%)
CIE-LAB	lab(19.56, 41.78, -58.73)
CIE-LCH	lch(19.56, 72.08, 305.43°)
OKLab	oklab(32.52% 0.0223 -0.1697)
OKLCH	oklch(32.52% 0.171 277.5)
XYZ	xyz(5.6442, 2.8815, 23.5465)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281888 #788818

analogous

#184088 #281888 #601888

triadic

#281888 #882818 #188828

tetradic

#281888 #881840 #788818 #188860

square

#281888 #881840 #788818 #188860

split-complementary

#281888 #886018 #408818

monochromatic

#090620 #190F54 #281888 #3721BC #543EDD

Accessibility & contrast

On white

13.32

#281888 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#281888 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281888

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281888	#FFFFFF	#000000	##FFFFFF
##281888	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348B

Deuteranopia (green-blind)

#002B86

Tritanopia (blue-blind)

#003B50

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281888;
/* rgb */ color: rgb(40, 24, 136);
/* oklch */ color: oklch(32.5% 0.171 277.5);

Tailwind

colors: {
  custom: {
    50: '#7259ac',
    500: '#281888',
    950: '#000000',
  },
}

SCSS

$custom: #281888;
$custom-light: #7259ac;
$custom-dark: #000000;

JSON

{
  "hex": "#281888",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 136
  },
  "hsl": {
    "h": 248.571,
    "s": 70,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32521,
    "c": 0.17116,
    "h": 277.5
  },
  "luminance": 0.02882
}

Semantic roles & 50–950 ramp

primary

#281888

secondary

#AABC40

accent

#ED3BD3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281888

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

Preview Lab → · Contrast checker → · Palette generator →