#281C78#281C78

#281C78 is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.3% C 0.147 H 279.5°. Best body text is #FFFFFF at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#281C78
RGB	rgb(40, 28, 120)
HSL	hsl(248, 62%, 29%)
HSV	hsv(248, 77%, 47%)
CMYK	cmyk(66.7%, 76.7%, 0%, 52.9%)
CIE-LAB	lab(18.53, 34.42, -50.29)
CIE-LCH	lch(18.53, 60.94, 304.39°)
OKLab	oklab(31.27% 0.0243 -0.1451)
OKLCH	oklch(31.27% 0.147 279.5)
XYZ	xyz(4.6794, 2.6373, 18.0281)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C78 #6C781C

analogous

#1C3E78 #281C78 #561C78

triadic

#281C78 #78281C #1C7828

tetradic

#281C78 #781C3E #6C781C #1C7856

square

#281C78 #781C3E #6C781C #1C7856

split-complementary

#281C78 #78561C #3E781C

monochromatic

#080619 #171046 #281C78 #3928AA #503DD2

Accessibility & contrast

On white

13.75

#281C78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#281C78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C78

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C78	#FFFFFF	#000000	##FFFFFF
##281C78	1.00	13.75	1.53	13.75
#FFFFFF	13.75	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00317B

Deuteranopia (green-blind)

#002976

Tritanopia (blue-blind)

#003648

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #281c78;
/* rgb */ color: rgb(40, 28, 120);
/* oklch */ color: oklch(31.3% 0.147 279.5);

Tailwind

colors: {
  custom: {
    50: '#6e5aa0',
    500: '#281c78',
    950: '#000000',
  },
}

SCSS

$custom: #281c78;
$custom-light: #6e5aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#281c78",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 120
  },
  "hsl": {
    "h": 247.826,
    "s": 62.162,
    "l": 29.02
  },
  "oklch": {
    "l": 0.31266,
    "c": 0.14718,
    "h": 279.5
  },
  "luminance": 0.02638
}

Semantic roles & 50–950 ramp

primary

#281C78

secondary

#9EAC44

accent

#E543D0

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040F

muted

#7B797E

Preview Lab

Preview with #281C78

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

Preview Lab → · Contrast checker → · Palette generator →