#281E8B#281E8B

#281E8B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.6% C 0.169 H 276.3°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#281E8B
RGB	rgb(40, 30, 139)
HSL	hsl(246, 64%, 33%)
HSV	hsv(246, 78%, 55%)
CMYK	cmyk(71.2%, 78.4%, 0%, 45.5%)
CIE-LAB	lab(20.99, 39.61, -58.25)
CIE-LCH	lch(20.99, 70.44, 304.22°)
OKLab	oklab(33.62% 0.0185 -0.1684)
OKLCH	oklch(33.62% 0.169 276.3)
XYZ	xyz(5.9980, 3.2432, 24.7310)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281E8B #818B1E

analogous

#1E4A8B #281E8B #5F1E8B

triadic

#281E8B #8B281E #1E8B28

tetradic

#281E8B #8B1E4A #818B1E #1E8B5F

square

#281E8B #8B1E4A #818B1E #1E8B5F

split-complementary

#281E8B #8B5F1E #4A8B1E

monochromatic

#0B0826 #1A1359 #281E8B #3629BD #584BD8

Accessibility & contrast

On white

12.74

#281E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#281E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281E8B

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281E8B	#FFFFFF	#000000	##FFFFFF
##281E8B	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378E

Deuteranopia (green-blind)

#002E89

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281e8b;
/* rgb */ color: rgb(40, 30, 139);
/* oklch */ color: oklch(33.6% 0.169 276.3);

Tailwind

colors: {
  custom: {
    50: '#725cae',
    500: '#281e8b',
    950: '#000000',
  },
}

SCSS

$custom: #281e8b;
$custom-light: #725cae;
$custom-dark: #000000;

JSON

{
  "hex": "#281e8b",
  "rgb": {
    "r": 40,
    "g": 30,
    "b": 139
  },
  "hsl": {
    "h": 245.505,
    "s": 64.497,
    "l": 33.137
  },
  "oklch": {
    "l": 0.3362,
    "c": 0.16938,
    "h": 276.3
  },
  "luminance": 0.03244
}

Semantic roles & 50–950 ramp

primary

#281E8B

secondary

#B0BB4A

accent

#E740D8

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090410

muted

#7B797F

Preview Lab

Preview with #281E8B

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

Preview Lab → · Contrast checker → · Palette generator →