#281C74#281C74

#281C74 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.8% C 0.142 H 280.3°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#281C74
RGB	rgb(40, 28, 116)
HSL	hsl(248, 61%, 28%)
HSV	hsv(248, 76%, 45%)
CMYK	cmyk(65.5%, 75.9%, 0%, 54.5%)
CIE-LAB	lab(18.11, 33.08, -48.41)
CIE-LCH	lch(18.11, 58.63, 304.34°)
OKLab	oklab(30.84% 0.0253 -0.1397)
OKLCH	oklch(30.84% 0.142 280.3)
XYZ	xyz(4.4417, 2.5422, 16.7762)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C74 #68741C

analogous

#1C3C74 #281C74 #541C74

triadic

#281C74 #74281C #1C7428

tetradic

#281C74 #741C3C #68741C #1C7454

square

#281C74 #741C3C #68741C #1C7454

split-complementary

#281C74 #74541C #3C741C

monochromatic

#090619 #171043 #281C74 #3928A5 #4F3BD0

Accessibility & contrast

On white

13.92

#281C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#281C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C74

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C74	#FFFFFF	#000000	##FFFFFF
##281C74	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F77

Deuteranopia (green-blind)

#002972

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281c74;
/* rgb */ color: rgb(40, 28, 116);
/* oklch */ color: oklch(30.8% 0.142 280.3);

Tailwind

colors: {
  custom: {
    50: '#6d5a9d',
    500: '#281c74',
    950: '#000000',
  },
}

SCSS

$custom: #281c74;
$custom-light: #6d5a9d;
$custom-dark: #000000;

JSON

{
  "hex": "#281c74",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 116
  },
  "hsl": {
    "h": 248.182,
    "s": 61.111,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30842,
    "c": 0.14194,
    "h": 280.3
  },
  "luminance": 0.02543
}

Semantic roles & 50–950 ramp

primary

#281C74

secondary

#9BA843

accent

#E444CE

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08040E

muted

#7A797E

Preview Lab

Preview with #281C74

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

Preview Lab → · Contrast checker → · Palette generator →