#281F84#281F84

#281F84 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.160 H 277.1°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#281F84
RGB	rgb(40, 31, 132)
HSL	hsl(245, 62%, 32%)
HSV	hsv(245, 77%, 52%)
CMYK	cmyk(69.7%, 76.5%, 0%, 48.2%)
CIE-LAB	lab(20.43, 36.72, -54.79)
CIE-LCH	lch(20.43, 65.96, 303.83°)
OKLab	oklab(32.99% 0.0196 -0.1583)
OKLCH	oklch(32.99% 0.16 277.1)
XYZ	xyz(5.5286, 3.0965, 22.1317)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281F84 #7B841F

analogous

#1F4884 #281F84 #5B1F84

triadic

#281F84 #84281F #1F8428

tetradic

#281F84 #841F48 #7B841F #1F845B

square

#281F84 #841F48 #7B841F #1F845B

split-complementary

#281F84 #845B1F #48841F

monochromatic

#0A0821 #191352 #281F84 #372BB6 #5649D4

Accessibility & contrast

On white

12.97

#281F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#281F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281F84

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281F84	#FFFFFF	#000000	##FFFFFF
##281F84	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003587

Deuteranopia (green-blind)

#002D82

Tritanopia (blue-blind)

#003C50

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #281f84;
/* rgb */ color: rgb(40, 31, 132);
/* oklch */ color: oklch(33.0% 0.160 277.1);

Tailwind

colors: {
  custom: {
    50: '#705ca9',
    500: '#281f84',
    950: '#000000',
  },
}

SCSS

$custom: #281f84;
$custom-light: #705ca9;
$custom-dark: #000000;

JSON

{
  "hex": "#281f84",
  "rgb": {
    "r": 40,
    "g": 31,
    "b": 132
  },
  "hsl": {
    "h": 245.347,
    "s": 61.963,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32993,
    "c": 0.15951,
    "h": 277.1
  },
  "luminance": 0.03097
}

Semantic roles & 50–950 ramp

primary

#281F84

secondary

#ADB748

accent

#E543D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281F84

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

Preview Lab → · Contrast checker → · Palette generator →