#281C8C#281C8C

#281C8C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.5% C 0.172 H 276.4°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#281C8C
RGB	rgb(40, 28, 140)
HSL	hsl(246, 67%, 33%)
HSV	hsv(246, 80%, 55%)
CMYK	cmyk(71.4%, 80%, 0%, 45.1%)
CIE-LAB	lab(20.73, 41.02, -59.31)
CIE-LCH	lch(20.73, 72.11, 304.67°)
OKLab	oklab(33.47% 0.0193 -0.1714)
OKLCH	oklch(33.47% 0.173 276.4)
XYZ	xyz(6.0224, 3.1745, 25.1012)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C8C #808C1C

analogous

#1C488C #281C8C #601C8C

triadic

#281C8C #8C281C #1C8C28

tetradic

#281C8C #8C1C48 #808C1C #1C8C60

square

#281C8C #8C1C48 #808C1C #1C8C60

split-complementary

#281C8C #8C601C #488C1C

monochromatic

#0B0826 #191259 #281C8C #3726BF #5848DA

Accessibility & contrast

On white

12.84

#281C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#281C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C8C

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C8C	#FFFFFF	#000000	##FFFFFF
##281C8C	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378F

Deuteranopia (green-blind)

#002D8A

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281c8c;
/* rgb */ color: rgb(40, 28, 140);
/* oklch */ color: oklch(33.5% 0.172 276.4);

Tailwind

colors: {
  custom: {
    50: '#725baf',
    500: '#281c8c',
    950: '#000000',
  },
}

SCSS

$custom: #281c8c;
$custom-light: #725baf;
$custom-dark: #000000;

JSON

{
  "hex": "#281c8c",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 140
  },
  "hsl": {
    "h": 246.429,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33469,
    "c": 0.1725,
    "h": 276.4
  },
  "luminance": 0.03175
}

Semantic roles & 50–950 ramp

primary

#281C8C

secondary

#B0BC48

accent

#EA3ED7

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #281C8C

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

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