#281A83#281A83

#281A83 is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.2% C 0.163 H 278.0°. Best body text is #FFFFFF at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#281A83
RGB	rgb(40, 26, 131)
HSL	hsl(248, 67%, 31%)
HSV	hsv(248, 80%, 51%)
CMYK	cmyk(69.5%, 80.2%, 0%, 48.6%)
CIE-LAB	lab(19.34, 39.16, -55.95)
CIE-LCH	lch(19.34, 68.29, 304.99°)
OKLab	oklab(32.2% 0.0227 -0.1616)
OKLCH	oklch(32.2% 0.163 278)
XYZ	xyz(5.3399, 2.8281, 21.7328)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A83 #75831A

analogous

#1A4083 #281A83 #5C1A83

triadic

#281A83 #83281A #1A8328

tetradic

#281A83 #831A40 #75831A #1A835C

square

#281A83 #831A40 #75831A #1A835C

split-complementary

#281A83 #835C1A #40831A

monochromatic

#09061D #181050 #281A83 #3824B6 #533FD9

Accessibility & contrast

On white

13.41

#281A83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#281A83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A83

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A83	#FFFFFF	#000000	##FFFFFF
##281A83	1.00	13.41	1.57	13.41
#FFFFFF	13.41	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003386

Deuteranopia (green-blind)

#002A81

Tritanopia (blue-blind)

#00394E

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #281a83;
/* rgb */ color: rgb(40, 26, 131);
/* oklch */ color: oklch(32.2% 0.163 278.0);

Tailwind

colors: {
  custom: {
    50: '#7059a8',
    500: '#281a83',
    950: '#000000',
  },
}

SCSS

$custom: #281a83;
$custom-light: #7059a8;
$custom-dark: #000000;

JSON

{
  "hex": "#281a83",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 131
  },
  "hsl": {
    "h": 248,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32198,
    "c": 0.16322,
    "h": 278
  },
  "luminance": 0.02829
}

Semantic roles & 50–950 ramp

primary

#281A83

secondary

#A7B742

accent

#EA3ED3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281A83

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

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