#281C8E#281C8E

#281C8E is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.7% C 0.175 H 276.2°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#281C8E
RGB	rgb(40, 28, 142)
HSL	hsl(246, 67%, 33%)
HSV	hsv(246, 80%, 56%)
CMYK	cmyk(71.8%, 80.3%, 0%, 44.3%)
CIE-LAB	lab(20.96, 41.66, -60.18)
CIE-LCH	lch(20.96, 73.19, 304.70°)
OKLab	oklab(33.7% 0.0188 -0.1739)
OKLCH	oklch(33.7% 0.175 276.2)
XYZ	xyz(6.1712, 3.2340, 25.8849)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C8E #828E1C

analogous

#1C498E #281C8E #611C8E

triadic

#281C8E #8E281C #1C8E28

tetradic

#281C8E #8E1C49 #828E1C #1C8E61

square

#281C8E #8E1C49 #828E1C #1C8E61

split-complementary

#281C8E #8E611C #498E1C

monochromatic

#0B0828 #1A125B #281C8E #3626C1 #5949DB

Accessibility & contrast

On white

12.75

#281C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#281C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C8E

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C8E	#FFFFFF	#000000	##FFFFFF
##281C8E	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003791

Deuteranopia (green-blind)

#002D8C

Tritanopia (blue-blind)

#003F55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281c8e;
/* rgb */ color: rgb(40, 28, 142);
/* oklch */ color: oklch(33.7% 0.175 276.2);

Tailwind

colors: {
  custom: {
    50: '#735bb0',
    500: '#281c8e',
    950: '#000000',
  },
}

SCSS

$custom: #281c8e;
$custom-light: #735bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#281c8e",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 142
  },
  "hsl": {
    "h": 246.316,
    "s": 67.059,
    "l": 33.333
  },
  "oklch": {
    "l": 0.33695,
    "c": 0.17496,
    "h": 276.2
  },
  "luminance": 0.03235
}

Semantic roles & 50–950 ramp

primary

#281C8E

secondary

#B1BD49

accent

#EA3ED8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281C8E

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

Preview Lab → · Contrast checker → · Palette generator →