#283891#283891

#283891 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.6% C 0.147 H 270.2°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#283891
RGB	rgb(40, 56, 145)
HSL	hsl(231, 57%, 36%)
HSV	hsv(231, 72%, 57%)
CMYK	cmyk(72.4%, 61.4%, 0%, 43.1%)
CIE-LAB	lab(27.64, 25.40, -51.06)
CIE-LCH	lch(27.64, 57.03, 296.44°)
OKLab	oklab(38.61% 0.0004 -0.1473)
OKLCH	oklch(38.61% 0.147 270.2)
XYZ	xyz(7.3983, 5.3231, 27.4201)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283891 #918128

analogous

#286D91 #283891 #4D2891

triadic

#283891 #912838 #389128

tetradic

#283891 #91286D #918128 #28914D

square

#283891 #91286D #918128 #28914D

split-complementary

#283891 #914D28 #6D9128

monochromatic

#0E1331 #1B2561 #283891 #354BC1 #6072D3

Accessibility & contrast

On white

10.17

#283891 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#283891 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283891

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283891	#FFFFFF	#000000	##FFFFFF
##283891	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004694

Deuteranopia (green-blind)

#003D8F

Tritanopia (blue-blind)

#004E5F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #283891;
/* rgb */ color: rgb(40, 56, 145);
/* oklch */ color: oklch(38.6% 0.147 270.2);

Tailwind

colors: {
  custom: {
    50: '#716eb2',
    500: '#283891',
    950: '#000000',
  },
}

SCSS

$custom: #283891;
$custom-light: #716eb2;
$custom-dark: #000000;

JSON

{
  "hex": "#283891",
  "rgb": {
    "r": 40,
    "g": 56,
    "b": 145
  },
  "hsl": {
    "h": 230.857,
    "s": 56.757,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38605,
    "c": 0.14733,
    "h": 270.2
  },
  "luminance": 0.05324
}

Semantic roles & 50–950 ramp

primary

#283891

secondary

#B9AB5C

accent

#C948E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #283891

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

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