#281C90#281C90

#281C90 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.9% C 0.177 H 275.9°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#281C90
RGB	rgb(40, 28, 144)
HSL	hsl(246, 67%, 34%)
HSV	hsv(246, 81%, 56%)
CMYK	cmyk(72.2%, 80.6%, 0%, 43.5%)
CIE-LAB	lab(21.19, 42.30, -61.04)
CIE-LCH	lch(21.19, 74.27, 304.72°)
OKLab	oklab(33.92% 0.0182 -0.1765)
OKLCH	oklch(33.92% 0.177 275.9)
XYZ	xyz(6.3227, 3.2946, 26.6829)
Luminance	0.0330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C90 #84901C

analogous

#1C4A90 #281C90 #621C90

triadic

#281C90 #90281C #1C9028

tetradic

#281C90 #901C4A #84901C #1C9062

square

#281C90 #901C4A #84901C #1C9062

split-complementary

#281C90 #90621C #4A901C

monochromatic

#0C082A #1A125D #281C90 #3626C3 #5A4ADC

Accessibility & contrast

On white

12.66

#281C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#281C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C90

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C90	#FFFFFF	#000000	##FFFFFF
##281C90	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#002E8E

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #281c90;
/* rgb */ color: rgb(40, 28, 144);
/* oklch */ color: oklch(33.9% 0.177 275.9);

Tailwind

colors: {
  custom: {
    50: '#735bb2',
    500: '#281c90',
    950: '#000000',
  },
}

SCSS

$custom: #281c90;
$custom-light: #735bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#281c90",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 144
  },
  "hsl": {
    "h": 246.207,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.33923,
    "c": 0.1774,
    "h": 275.9
  },
  "luminance": 0.03295
}

Semantic roles & 50–950 ramp

primary

#281C90

secondary

#B2BE4A

accent

#EA3DD8

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #281C90

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

Preview Lab → · Contrast checker → · Palette generator →