#283D82#283D82

#283D82 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.4% C 0.119 H 267.7°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#283D82
RGB	rgb(40, 61, 130)
HSL	hsl(226, 53%, 33%)
HSV	hsv(226, 69%, 51%)
CMYK	cmyk(69.2%, 53.1%, 0%, 49%)
CIE-LAB	lab(27.84, 16.23, -41.43)
CIE-LCH	lch(27.84, 44.49, 291.40°)
OKLab	oklab(38.39% -0.0047 -0.1189)
OKLCH	oklch(38.39% 0.119 267.7)
XYZ	xyz(6.5717, 5.3997, 21.8107)
Luminance	0.0540 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D82 #826D28

analogous

#286A82 #283D82 #402882

triadic

#283D82 #82283D #3D8228

tetradic

#283D82 #82286A #826D28 #288240

square

#283D82 #82286A #826D28 #288240

split-complementary

#283D82 #824028 #6A8228

monochromatic

#0B1124 #1A2753 #283D82 #3653B1 #5973CC

Accessibility & contrast

On white

10.10

#283D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#283D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D82

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D82	#FFFFFF	#000000	##FFFFFF
##283D82	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134684

Deuteranopia (green-blind)

#003E81

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #283d82;
/* rgb */ color: rgb(40, 61, 130);
/* oklch */ color: oklch(38.4% 0.119 267.7);

Tailwind

colors: {
  custom: {
    50: '#6d72a7',
    500: '#283d82',
    950: '#000000',
  },
}

SCSS

$custom: #283d82;
$custom-light: #6d72a7;
$custom-dark: #000000;

JSON

{
  "hex": "#283d82",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 130
  },
  "hsl": {
    "h": 226,
    "s": 52.941,
    "l": 33.333
  },
  "oklch": {
    "l": 0.38391,
    "c": 0.11901,
    "h": 267.7
  },
  "luminance": 0.054
}

Semantic roles & 50–950 ramp

primary

#283D82

secondary

#B19B55

accent

#BB4BDC

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#08070F

muted

#7A7A7F

Preview Lab

Preview with #283D82

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

Preview Lab → · Contrast checker → · Palette generator →