#284F83#284F83

#284F83 is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.6% C 0.098 H 256.3°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#284F83
RGB	rgb(40, 79, 131)
HSL	hsl(214, 53%, 34%)
HSV	hsv(214, 69%, 51%)
CMYK	cmyk(69.5%, 39.7%, 0%, 48.6%)
CIE-LAB	lab(33.31, 4.43, -33.30)
CIE-LCH	lch(33.31, 33.59, 277.57°)
OKLab	oklab(42.61% -0.023 -0.0947)
OKLCH	oklch(42.61% 0.098 256.3)
XYZ	xyz(7.7663, 7.6810, 22.5416)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284F83 #835C28

analogous

#287C83 #284F83 #2F2883

triadic

#284F83 #83284F #4F8328

tetradic

#284F83 #83287C #835C28 #28832F

square

#284F83 #83287C #835C28 #28832F

split-complementary

#284F83 #832F28 #7C8328

monochromatic

#0B1625 #1A3354 #284F83 #366BB2 #598ACC

Accessibility & contrast

On white

8.28

#284F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#284F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284F83

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284F83	#FFFFFF	#000000	##FFFFFF
##284F83	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#385385

Deuteranopia (green-blind)

#2A4A82

Tritanopia (blue-blind)

#005B62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284f83;
/* rgb */ color: rgb(40, 79, 131);
/* oklch */ color: oklch(42.6% 0.098 256.3);

Tailwind

colors: {
  custom: {
    50: '#6d7fa7',
    500: '#284f83',
    950: '#000000',
  },
}

SCSS

$custom: #284f83;
$custom-light: #6d7fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#284f83",
  "rgb": {
    "r": 40,
    "g": 79,
    "b": 131
  },
  "hsl": {
    "h": 214.286,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42613,
    "c": 0.09751,
    "h": 256.3
  },
  "luminance": 0.07682
}

Semantic roles & 50–950 ramp

primary

#284F83

secondary

#B18A55

accent

#9E4BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #284F83

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

Preview Lab → · Contrast checker → · Palette generator →