#281F79#281F79

#281F79 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.8% C 0.145 H 278.7°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#281F79
RGB	rgb(40, 31, 121)
HSL	hsl(246, 59%, 30%)
HSV	hsv(246, 74%, 47%)
CMYK	cmyk(66.9%, 74.4%, 0%, 52.5%)
CIE-LAB	lab(19.27, 32.98, -49.71)
CIE-LCH	lch(19.27, 59.65, 303.56°)
OKLab	oklab(31.83% 0.022 -0.1435)
OKLCH	oklch(31.83% 0.145 278.7)
XYZ	xyz(4.8151, 2.8112, 18.3743)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F79 #70791F

analogous

#1F4379 #281F79 #551F79

triadic

#281F79 #79281F #1F7928

tetradic

#281F79 #791F43 #70791F #1F7955

square

#281F79 #791F43 #70791F #1F7955

split-complementary

#281F79 #79551F #43791F

monochromatic

#080618 #181348 #281F79 #382BAA #5143CF

Accessibility & contrast

On white

13.44

#281F79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#281F79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F79

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F79	#FFFFFF	#000000	##FFFFFF
##281F79	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327C

Deuteranopia (green-blind)

#002B77

Tritanopia (blue-blind)

#00384A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281f79;
/* rgb */ color: rgb(40, 31, 121);
/* oklch */ color: oklch(31.8% 0.145 278.7);

Tailwind

colors: {
  custom: {
    50: '#6e5ca1',
    500: '#281f79',
    950: '#000000',
  },
}

SCSS

$custom: #281f79;
$custom-light: #6e5ca1;
$custom-dark: #000000;

JSON

{
  "hex": "#281f79",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 121
  },
  "hsl": {
    "h": 246,
    "s": 59.211,
    "l": 29.804
  },
  "oklch": {
    "l": 0.31825,
    "c": 0.14514,
    "h": 278.7
  },
  "luminance": 0.02812
}

Semantic roles & 50–950 ramp

primary

#281F79

secondary

#A2AC47

accent

#E245D3

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#08040F

muted

#7B797F

Preview Lab

Preview with #281F79

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

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