#283C82#283C82

#283C82 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.2% C 0.120 H 268.2°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#283C82
RGB	rgb(40, 60, 130)
HSL	hsl(227, 53%, 33%)
HSV	hsv(227, 69%, 51%)
CMYK	cmyk(69.2%, 53.8%, 0%, 49%)
CIE-LAB	lab(27.56, 16.92, -41.89)
CIE-LCH	lch(27.56, 45.18, 292.00°)
OKLab	oklab(38.17% -0.0037 -0.1203)
OKLCH	oklch(38.17% 0.12 268.2)
XYZ	xyz(6.5188, 5.2939, 21.7931)
Luminance	0.0529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C82 #826E28

analogous

#286982 #283C82 #412882

triadic

#283C82 #82283C #3C8228

tetradic

#283C82 #822869 #826E28 #288241

square

#283C82 #822869 #826E28 #288241

split-complementary

#283C82 #824128 #698228

monochromatic

#0B1124 #1A2653 #283C82 #3652B1 #5972CC

Accessibility & contrast

On white

10.20

#283C82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#283C82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C82

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C82	#FFFFFF	#000000	##FFFFFF
##283C82	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104584

Deuteranopia (green-blind)

#003D81

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #283c82;
/* rgb */ color: rgb(40, 60, 130);
/* oklch */ color: oklch(38.2% 0.120 268.2);

Tailwind

colors: {
  custom: {
    50: '#6d71a7',
    500: '#283c82',
    950: '#000000',
  },
}

SCSS

$custom: #283c82;
$custom-light: #6d71a7;
$custom-dark: #000000;

JSON

{
  "hex": "#283c82",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 130
  },
  "hsl": {
    "h": 226.667,
    "s": 52.941,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38172,
    "c": 0.12037,
    "h": 268.2
  },
  "luminance": 0.05295
}

Semantic roles & 50–950 ramp

primary

#283C82

secondary

#B19C55

accent

#BC4BDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #283C82

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

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