#284D83#284D83

#284D83 is a dark, moderate blue. Relative luminance 0.074; OKLCH L 42.1% C 0.100 H 257.9°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#284D83
RGB	rgb(40, 77, 131)
HSL	hsl(216, 53%, 34%)
HSV	hsv(216, 69%, 51%)
CMYK	cmyk(69.5%, 41.2%, 0%, 48.6%)
CIE-LAB	lab(32.69, 5.75, -34.28)
CIE-LCH	lch(32.69, 34.76, 279.52°)
OKLab	oklab(42.13% -0.0209 -0.0976)
OKLCH	oklch(42.13% 0.1 257.9)
XYZ	xyz(7.6242, 7.3968, 22.4943)
Luminance	0.0740 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284D83 #835E28

analogous

#287A83 #284D83 #302883

triadic

#284D83 #83284D #4D8328

tetradic

#284D83 #83287A #835E28 #288330

square

#284D83 #83287A #835E28 #288330

split-complementary

#284D83 #833028 #7A8328

monochromatic

#0B1625 #1A3154 #284D83 #3669B2 #5988CC

Accessibility & contrast

On white

8.47

#284D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#284D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284D83

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284D83	#FFFFFF	#000000	##FFFFFF
##284D83	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345185

Deuteranopia (green-blind)

#274982

Tritanopia (blue-blind)

#005961

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #284d83;
/* rgb */ color: rgb(40, 77, 131);
/* oklch */ color: oklch(42.1% 0.100 257.9);

Tailwind

colors: {
  custom: {
    50: '#6d7ea7',
    500: '#284d83',
    950: '#000000',
  },
}

SCSS

$custom: #284d83;
$custom-light: #6d7ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#284d83",
  "rgb": {
    "r": 40,
    "g": 77,
    "b": 131
  },
  "hsl": {
    "h": 215.604,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42134,
    "c": 0.09987,
    "h": 257.9
  },
  "luminance": 0.07398
}

Semantic roles & 50–950 ramp

primary

#284D83

secondary

#B18C55

accent

#A14BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #284D83

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

Preview Lab → · Contrast checker → · Palette generator →