#281F7D#281F7D

#281F7D is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.2% C 0.150 H 278.1°. Best body text is #FFFFFF at 13.27:1 contrast (WCAG AA passes).

Color values

HEX	#281F7D
RGB	rgb(40, 31, 125)
HSL	hsl(246, 60%, 31%)
HSV	hsv(246, 75%, 49%)
CMYK	cmyk(68%, 75.2%, 0%, 51%)
CIE-LAB	lab(19.69, 34.35, -51.58)
CIE-LCH	lch(19.69, 61.97, 303.66°)
OKLab	oklab(32.25% 0.0211 -0.1489)
OKLCH	oklch(32.25% 0.15 278.1)
XYZ	xyz(5.0655, 2.9113, 19.6931)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F7D #747D1F

analogous

#1F457D #281F7D #571F7D

triadic

#281F7D #7D281F #1F7D28

tetradic

#281F7D #7D1F45 #747D1F #1F7D57

square

#281F7D #7D1F45 #747D1F #1F7D57

split-complementary

#281F7D #7D571F #457D1F

monochromatic

#09071B #18134C #281F7D #382BAE #5345D1

Accessibility & contrast

On white

13.27

#281F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#281F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F7D

13.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F7D	#FFFFFF	#000000	##FFFFFF
##281F7D	1.00	13.27	1.58	13.27
#FFFFFF	13.27	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003380

Deuteranopia (green-blind)

#002C7B

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281f7d;
/* rgb */ color: rgb(40, 31, 125);
/* oklch */ color: oklch(32.2% 0.150 278.1);

Tailwind

colors: {
  custom: {
    50: '#6f5ca4',
    500: '#281f7d',
    950: '#000000',
  },
}

SCSS

$custom: #281f7d;
$custom-light: #6f5ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#281f7d",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 125
  },
  "hsl": {
    "h": 245.745,
    "s": 60.256,
    "l": 30.588
  },
  "oklch": {
    "l": 0.32245,
    "c": 0.15042,
    "h": 278.1
  },
  "luminance": 0.02912
}

Semantic roles & 50–950 ramp

primary

#281F7D

secondary

#A6B048

accent

#E344D4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F7D

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

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