#281F6A#281F6A

#281F6A is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.3% C 0.125 H 281.4°. Best body text is #FFFFFF at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#281F6A
RGB	rgb(40, 31, 106)
HSL	hsl(247, 55%, 27%)
HSV	hsv(247, 71%, 42%)
CMYK	cmyk(62.3%, 70.8%, 0%, 58.4%)
CIE-LAB	lab(17.79, 27.78, -42.45)
CIE-LCH	lch(17.79, 50.73, 303.20°)
OKLab	oklab(30.31% 0.0246 -0.1222)
OKLCH	oklch(30.31% 0.125 281.4)
XYZ	xyz(3.9658, 2.4714, 13.9009)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F6A #616A1F

analogous

#1F3C6A #281F6A #4E1F6A

triadic

#281F6A #6A281F #1F6A28

tetradic

#281F6A #6A1F3C #616A1F #1F6A4E

square

#281F6A #6A1F3C #616A1F #1F6A4E

split-complementary

#281F6A #6A4E1F #3C6A1F

monochromatic

#090718 #16113B #281F6A #3A2D99 #4E3DC6

Accessibility & contrast

On white

14.05

#281F6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#281F6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F6A

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F6A	#FFFFFF	#000000	##FFFFFF
##281F6A	1.00	14.05	1.49	14.05
#FFFFFF	14.05	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6C

Deuteranopia (green-blind)

#002969

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #281f6a;
/* rgb */ color: rgb(40, 31, 106);
/* oklch */ color: oklch(30.3% 0.125 281.4);

Tailwind

colors: {
  custom: {
    50: '#6a5b95',
    500: '#281f6a',
    950: '#000000',
  },
}

SCSS

$custom: #281f6a;
$custom-light: #6a5b95;
$custom-dark: #000000;

JSON

{
  "hex": "#281f6a",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 106
  },
  "hsl": {
    "h": 247.2,
    "s": 54.745,
    "l": 26.863
  },
  "oklch": {
    "l": 0.30309,
    "c": 0.12468,
    "h": 281.4
  },
  "luminance": 0.02472
}

Semantic roles & 50–950 ramp

primary

#281F6A

secondary

#949E47

accent

#DE4ACC

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040D

muted

#7A797E

Preview Lab

Preview with #281F6A

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

Preview Lab → · Contrast checker → · Palette generator →