#281BA7#281BA7

#281BA7 is a dark, highly saturated blue. Relative luminance 0.040; OKLCH L 36.5% C 0.205 H 273.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#281BA7
RGB	rgb(40, 27, 167)
HSL	hsl(246, 72%, 38%)
HSV	hsv(246, 84%, 65%)
CMYK	cmyk(76%, 83.8%, 0%, 34.5%)
CIE-LAB	lab(23.75, 49.95, -70.90)
CIE-LCH	lch(23.75, 86.72, 305.17°)
OKLab	oklab(36.49% 0.0123 -0.205)
OKLCH	oklch(36.49% 0.205 273.4)
XYZ	xyz(8.2397, 4.0241, 36.8942)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281BA7 #9AA71B

analogous

#1B54A7 #281BA7 #6E1BA7

triadic

#281BA7 #A7281B #1BA728

tetradic

#281BA7 #A71B54 #9AA71B #1BA76E

square

#281BA7 #A71B54 #9AA71B #1BA76E

split-complementary

#281BA7 #A76E1B #54A71B

monochromatic

#0F0A3E #1B1272 #281BA7 #3524DC #6558E4

Accessibility & contrast

On white

11.63

#281BA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#281BA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281BA7

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281BA7	#FFFFFF	#000000	##FFFFFF
##281BA7	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FAB

Deuteranopia (green-blind)

#0032A5

Tritanopia (blue-blind)

#004863

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #281ba7;
/* rgb */ color: rgb(40, 27, 167);
/* oklch */ color: oklch(36.5% 0.205 273.4);

Tailwind

colors: {
  custom: {
    50: '#795dc3',
    500: '#281ba7',
    950: '#000000',
  },
}

SCSS

$custom: #281ba7;
$custom-light: #795dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#281ba7",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 167
  },
  "hsl": {
    "h": 245.571,
    "s": 72.165,
    "l": 38.039
  },
  "oklch": {
    "l": 0.36492,
    "c": 0.20541,
    "h": 273.4
  },
  "luminance": 0.04025
}

Semantic roles & 50–950 ramp

primary

#281BA7

secondary

#BDC856

accent

#EF39DE

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #281BA7

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

Preview Lab → · Contrast checker → · Palette generator →