#281BA6#281BA6

#281BA6 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.4% C 0.204 H 273.5°. Best body text is #FFFFFF at 11.68:1 contrast (WCAG AA passes).

Color values

HEX	#281BA6
RGB	rgb(40, 27, 166)
HSL	hsl(246, 72%, 38%)
HSV	hsv(246, 84%, 65%)
CMYK	cmyk(75.9%, 83.7%, 0%, 34.9%)
CIE-LAB	lab(23.63, 49.65, -70.49)
CIE-LCH	lch(23.63, 86.22, 305.16°)
OKLab	oklab(36.37% 0.0126 -0.2039)
OKLCH	oklch(36.37% 0.204 273.5)
XYZ	xyz(8.1476, 3.9873, 36.4092)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281BA6 #99A61B

analogous

#1B53A6 #281BA6 #6E1BA6

triadic

#281BA6 #A6281B #1BA628

tetradic

#281BA6 #A61B53 #99A61B #1BA66E

square

#281BA6 #A61B53 #99A61B #1BA66E

split-complementary

#281BA6 #A66E1B #53A61B

monochromatic

#0F0A3D #1B1271 #281BA6 #3524DB #6558E4

Accessibility & contrast

On white

11.68

#281BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#281BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281BA6

11.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281BA6	#FFFFFF	#000000	##FFFFFF
##281BA6	1.00	11.68	1.80	11.68
#FFFFFF	11.68	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EAA

Deuteranopia (green-blind)

#0032A4

Tritanopia (blue-blind)

#004863

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #281ba6;
/* rgb */ color: rgb(40, 27, 166);
/* oklch */ color: oklch(36.4% 0.204 273.5);

Tailwind

colors: {
  custom: {
    50: '#795dc2',
    500: '#281ba6',
    950: '#000000',
  },
}

SCSS

$custom: #281ba6;
$custom-light: #795dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#281ba6",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 166
  },
  "hsl": {
    "h": 245.612,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.36373,
    "c": 0.20426,
    "h": 273.5
  },
  "luminance": 0.03988
}

Semantic roles & 50–950 ramp

primary

#281BA6

secondary

#BDC756

accent

#EF39DE

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #281BA6

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

Preview Lab → · Contrast checker → · Palette generator →