#281F66#281F66

#281F66 is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.9% C 0.119 H 282.2°. Best body text is #FFFFFF at 14.21:1 contrast (WCAG AA passes).

Color values

HEX	#281F66
RGB	rgb(40, 31, 102)
HSL	hsl(248, 53%, 26%)
HSV	hsv(248, 70%, 40%)
CMYK	cmyk(60.8%, 69.6%, 0%, 60%)
CIE-LAB	lab(17.41, 26.38, -40.44)
CIE-LCH	lch(17.41, 48.28, 303.11°)
OKLab	oklab(29.92% 0.0252 -0.1163)
OKLCH	oklch(29.92% 0.119 282.2)
XYZ	xyz(3.7626, 2.3902, 12.8309)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F66 #5D661F

analogous

#1F3966 #281F66 #4B1F66

triadic

#281F66 #66281F #1F6628

tetradic

#281F66 #661F39 #5D661F #1F664B

square

#281F66 #661F39 #5D661F #1F664B

split-complementary

#281F66 #664B1F #39661F

monochromatic

#090717 #161137 #281F66 #3A2D95 #4D3CC4

Accessibility & contrast

On white

14.21

#281F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#281F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F66

14.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F66	#FFFFFF	#000000	##FFFFFF
##281F66	1.00	14.21	1.48	14.21
#FFFFFF	14.21	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D68

Deuteranopia (green-blind)

#002865

Tritanopia (blue-blind)

#06313F

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #281f66;
/* rgb */ color: rgb(40, 31, 102);
/* oklch */ color: oklch(29.9% 0.119 282.2);

Tailwind

colors: {
  custom: {
    50: '#695b92',
    500: '#281f66',
    950: '#000000',
  },
}

SCSS

$custom: #281f66;
$custom-light: #695b92;
$custom-dark: #000000;

JSON

{
  "hex": "#281f66",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 102
  },
  "hsl": {
    "h": 247.606,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29923,
    "c": 0.11902,
    "h": 282.2
  },
  "luminance": 0.0239
}

Semantic roles & 50–950 ramp

primary

#281F66

secondary

#909A46

accent

#DD4BCA

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07040D

muted

#7A797E

Preview Lab

Preview with #281F66

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

Preview Lab → · Contrast checker → · Palette generator →