#281A89#281A89

#281A89 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.171 H 277.1°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#281A89
RGB	rgb(40, 26, 137)
HSL	hsl(248, 68%, 32%)
HSV	hsv(248, 81%, 54%)
CMYK	cmyk(70.8%, 81%, 0%, 46.3%)
CIE-LAB	lab(20.03, 41.09, -58.59)
CIE-LCH	lch(20.03, 71.57, 305.04°)
OKLab	oklab(32.88% 0.0211 -0.1693)
OKLCH	oklch(32.88% 0.171 277.1)
XYZ	xyz(5.7584, 2.9955, 23.9368)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281A89 #7B891A

analogous

#1A4389 #281A89 #601A89

triadic

#281A89 #89281A #1A8928

tetradic

#281A89 #891A43 #7B891A #1A8960

square

#281A89 #891A43 #7B891A #1A8960

split-complementary

#281A89 #89601A #43891A

monochromatic

#0A0622 #191056 #281A89 #3724BC #5642DB

Accessibility & contrast

On white

13.13

#281A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#281A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281A89

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281A89	#FFFFFF	#000000	##FFFFFF
##281A89	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358C

Deuteranopia (green-blind)

#002C87

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281a89;
/* rgb */ color: rgb(40, 26, 137);
/* oklch */ color: oklch(32.9% 0.171 277.1);

Tailwind

colors: {
  custom: {
    50: '#725aad',
    500: '#281a89',
    950: '#000000',
  },
}

SCSS

$custom: #281a89;
$custom-light: #725aad;
$custom-dark: #000000;

JSON

{
  "hex": "#281a89",
  "rgb": {
    "r": 40,
    "g": 26,
    "b": 137
  },
  "hsl": {
    "h": 247.568,
    "s": 68.098,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32877,
    "c": 0.17063,
    "h": 277.1
  },
  "luminance": 0.02996
}

Semantic roles & 50–950 ramp

primary

#281A89

secondary

#ADBC43

accent

#EB3DD5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281A89

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

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