#281F7A#281F7A

#281F7A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.9% C 0.146 H 278.5°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#281F7A
RGB	rgb(40, 31, 122)
HSL	hsl(246, 59%, 30%)
HSV	hsv(246, 75%, 48%)
CMYK	cmyk(67.2%, 74.6%, 0%, 52.2%)
CIE-LAB	lab(19.37, 33.32, -50.18)
CIE-LCH	lch(19.37, 60.24, 303.59°)
OKLab	oklab(31.93% 0.0218 -0.1448)
OKLCH	oklch(31.93% 0.146 278.5)
XYZ	xyz(4.8768, 2.8358, 18.6990)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F7A #717A1F

analogous

#1F447A #281F7A #551F7A

triadic

#281F7A #7A281F #1F7A28

tetradic

#281F7A #7A1F44 #717A1F #1F7A55

square

#281F7A #7A1F44 #717A1F #1F7A55

split-complementary

#281F7A #7A551F #447A1F

monochromatic

#080618 #181349 #281F7A #382BAB #5244CF

Accessibility & contrast

On white

13.40

#281F7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281F7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F7A

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F7A	#FFFFFF	#000000	##FFFFFF
##281F7A	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337D

Deuteranopia (green-blind)

#002B78

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281f7a;
/* rgb */ color: rgb(40, 31, 122);
/* oklch */ color: oklch(31.9% 0.146 278.5);

Tailwind

colors: {
  custom: {
    50: '#6e5ca1',
    500: '#281f7a',
    950: '#000000',
  },
}

SCSS

$custom: #281f7a;
$custom-light: #6e5ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#281f7a",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 122
  },
  "hsl": {
    "h": 245.934,
    "s": 59.477,
    "l": 30
  },
  "oklch": {
    "l": 0.31929,
    "c": 0.14647,
    "h": 278.5
  },
  "luminance": 0.02836
}

Semantic roles & 50–950 ramp

primary

#281F7A

secondary

#A3AD47

accent

#E345D3

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F7A

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

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