#281F7C#281F7C

#281F7C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.1% C 0.149 H 278.2°. Best body text is #FFFFFF at 13.31:1 contrast (WCAG AA passes).

Color values

HEX	#281F7C
RGB	rgb(40, 31, 124)
HSL	hsl(246, 60%, 30%)
HSV	hsv(246, 75%, 49%)
CMYK	cmyk(67.7%, 75%, 0%, 51.4%)
CIE-LAB	lab(19.58, 34.01, -51.11)
CIE-LCH	lch(19.58, 61.39, 303.64°)
OKLab	oklab(32.14% 0.0213 -0.1476)
OKLCH	oklch(32.14% 0.149 278.2)
XYZ	xyz(5.0020, 2.8859, 19.3583)
Luminance	0.0289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F7C #737C1F

analogous

#1F457C #281F7C #561F7C

triadic

#281F7C #7C281F #1F7C28

tetradic

#281F7C #7C1F45 #737C1F #1F7C56

square

#281F7C #7C1F45 #737C1F #1F7C56

split-complementary

#281F7C #7C561F #457C1F

monochromatic

#08071A #18134B #281F7C #382BAD #5245D0

Accessibility & contrast

On white

13.31

#281F7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#281F7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F7C

13.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F7C	#FFFFFF	#000000	##FFFFFF
##281F7C	1.00	13.31	1.58	13.31
#FFFFFF	13.31	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337F

Deuteranopia (green-blind)

#002C7A

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281f7c;
/* rgb */ color: rgb(40, 31, 124);
/* oklch */ color: oklch(32.1% 0.149 278.2);

Tailwind

colors: {
  custom: {
    50: '#6e5ca3',
    500: '#281f7c',
    950: '#000000',
  },
}

SCSS

$custom: #281f7c;
$custom-light: #6e5ca3;
$custom-dark: #000000;

JSON

{
  "hex": "#281f7c",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 124
  },
  "hsl": {
    "h": 245.806,
    "s": 60,
    "l": 30.392
  },
  "oklch": {
    "l": 0.32139,
    "c": 0.14911,
    "h": 278.2
  },
  "luminance": 0.02886
}

Semantic roles & 50–950 ramp

primary

#281F7C

secondary

#A5AF48

accent

#E345D4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F7C

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

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