#281F87#281F87

#281F87 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.3% C 0.163 H 276.7°. Best body text is #FFFFFF at 12.84:1 contrast (WCAG AA passes).

Color values

HEX	#281F87
RGB	rgb(40, 31, 135)
HSL	hsl(245, 63%, 33%)
HSV	hsv(245, 77%, 53%)
CMYK	cmyk(70.4%, 77%, 0%, 47.1%)
CIE-LAB	lab(20.75, 37.73, -56.14)
CIE-LCH	lch(20.75, 67.64, 303.90°)
OKLab	oklab(33.32% 0.0189 -0.1622)
OKLCH	oklch(33.32% 0.163 276.7)
XYZ	xyz(5.7368, 3.1798, 23.2284)
Luminance	0.0318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F87 #7E871F

analogous

#1F4A87 #281F87 #5C1F87

triadic

#281F87 #87281F #1F8728

tetradic

#281F87 #871F4A #7E871F #1F875C

square

#281F87 #871F4A #7E871F #1F875C

split-complementary

#281F87 #875C1F #4A871F

monochromatic

#0B0823 #191455 #281F87 #372AB9 #574BD6

Accessibility & contrast

On white

12.84

#281F87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#281F87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F87

12.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F87	#FFFFFF	#000000	##FFFFFF
##281F87	1.00	12.84	1.64	12.84
#FFFFFF	12.84	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368A

Deuteranopia (green-blind)

#002D85

Tritanopia (blue-blind)

#003D51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #281f87;
/* rgb */ color: rgb(40, 31, 135);
/* oklch */ color: oklch(33.3% 0.163 276.7);

Tailwind

colors: {
  custom: {
    50: '#715dab',
    500: '#281f87',
    950: '#000000',
  },
}

SCSS

$custom: #281f87;
$custom-light: #715dab;
$custom-dark: #000000;

JSON

{
  "hex": "#281f87",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 135
  },
  "hsl": {
    "h": 245.192,
    "s": 62.651,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33319,
    "c": 0.16334,
    "h": 276.7
  },
  "luminance": 0.0318
}

Semantic roles & 50–950 ramp

primary

#281F87

secondary

#AFB84A

accent

#E642D8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281F87

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

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