#281C9E#281C9E

#281C9E is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.5% C 0.194 H 274.3°. Best body text is #FFFFFF at 12.00:1 contrast (WCAG AA passes).

Color values

HEX	#281C9E
RGB	rgb(40, 28, 158)
HSL	hsl(246, 70%, 36%)
HSV	hsv(246, 82%, 62%)
CMYK	cmyk(74.7%, 82.3%, 0%, 38%)
CIE-LAB	lab(22.83, 46.72, -66.96)
CIE-LCH	lch(22.83, 81.65, 304.91°)
OKLab	oklab(35.54% 0.0145 -0.1936)
OKLCH	oklch(35.54% 0.194 274.3)
XYZ	xyz(7.4598, 3.7495, 32.6717)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C9E #929E1C

analogous

#1C519E #281C9E #691C9E

triadic

#281C9E #9E281C #1C9E28

tetradic

#281C9E #9E1C51 #929E1C #1C9E69

square

#281C9E #9E1C51 #929E1C #1C9E69

split-complementary

#281C9E #9E691C #519E1C

monochromatic

#0E0A36 #1B136A #281C9E #3525D2 #6154E1

Accessibility & contrast

On white

12.00

#281C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#281C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C9E

12.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C9E	#FFFFFF	#000000	##FFFFFF
##281C9E	1.00	12.00	1.75	12.00
#FFFFFF	12.00	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA2

Deuteranopia (green-blind)

#00309C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #281c9e;
/* rgb */ color: rgb(40, 28, 158);
/* oklch */ color: oklch(35.5% 0.194 274.3);

Tailwind

colors: {
  custom: {
    50: '#775cbc',
    500: '#281c9e',
    950: '#000000',
  },
}

SCSS

$custom: #281c9e;
$custom-light: #775cbc;
$custom-dark: #000000;

JSON

{
  "hex": "#281c9e",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 158
  },
  "hsl": {
    "h": 245.538,
    "s": 69.892,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35539,
    "c": 0.19418,
    "h": 274.3
  },
  "luminance": 0.0375
}

Semantic roles & 50–950 ramp

primary

#281C9E

secondary

#B9C452

accent

#ED3BDC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #281C9E

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

Preview Lab → · Contrast checker → · Palette generator →