#281F7E#281F7E

#281F7E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.152 H 277.9°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#281F7E
RGB	rgb(40, 31, 126)
HSL	hsl(246, 61%, 31%)
HSV	hsv(246, 75%, 49%)
CMYK	cmyk(68.3%, 75.4%, 0%, 50.6%)
CIE-LAB	lab(19.79, 34.69, -52.04)
CIE-LCH	lch(19.79, 62.54, 303.68°)
OKLab	oklab(32.35% 0.0209 -0.1503)
OKLCH	oklch(32.35% 0.152 277.9)
XYZ	xyz(5.1297, 2.9370, 20.0312)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F7E #757E1F

analogous

#1F457E #281F7E #571F7E

triadic

#281F7E #7E281F #1F7E28

tetradic

#281F7E #7E1F45 #757E1F #1F7E57

square

#281F7E #7E1F45 #757E1F #1F7E57

split-complementary

#281F7E #7E571F #457E1F

monochromatic

#09071C #18134D #281F7E #382BAF #5346D1

Accessibility & contrast

On white

13.23

#281F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#281F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F7E

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F7E	#FFFFFF	#000000	##FFFFFF
##281F7E	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003481

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281f7e;
/* rgb */ color: rgb(40, 31, 126);
/* oklch */ color: oklch(32.4% 0.152 277.9);

Tailwind

colors: {
  custom: {
    50: '#6f5ca4',
    500: '#281f7e',
    950: '#000000',
  },
}

SCSS

$custom: #281f7e;
$custom-light: #6f5ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#281f7e",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 126
  },
  "hsl": {
    "h": 245.684,
    "s": 60.51,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32351,
    "c": 0.15174,
    "h": 277.9
  },
  "luminance": 0.02937
}

Semantic roles & 50–950 ramp

primary

#281F7E

secondary

#A7B148

accent

#E444D5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F7E

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

Preview Lab → · Contrast checker → · Palette generator →