#284E83#284E83

#284E83 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.4% C 0.099 H 257.1°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#284E83
RGB	rgb(40, 78, 131)
HSL	hsl(215, 53%, 34%)
HSV	hsv(215, 69%, 51%)
CMYK	cmyk(69.5%, 40.5%, 0%, 48.6%)
CIE-LAB	lab(33.00, 5.09, -33.79)
CIE-LCH	lch(33.00, 34.17, 278.56°)
OKLab	oklab(42.37% -0.022 -0.0962)
OKLCH	oklch(42.37% 0.099 257.1)
XYZ	xyz(7.6947, 7.5378, 22.5178)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#284E83 #835D28

analogous

#287B83 #284E83 #2F2883

triadic

#284E83 #83284E #4E8328

tetradic

#284E83 #83287B #835D28 #28832F

square

#284E83 #83287B #835D28 #28832F

split-complementary

#284E83 #832F28 #7B8328

monochromatic

#0B1625 #1A3254 #284E83 #366AB2 #5989CC

Accessibility & contrast

On white

8.37

#284E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#284E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #284E83

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##284E83	#FFFFFF	#000000	##FFFFFF
##284E83	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#365285

Deuteranopia (green-blind)

#284A82

Tritanopia (blue-blind)

#005A62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #284e83;
/* rgb */ color: rgb(40, 78, 131);
/* oklch */ color: oklch(42.4% 0.099 257.1);

Tailwind

colors: {
  custom: {
    50: '#6d7fa7',
    500: '#284e83',
    950: '#000000',
  },
}

SCSS

$custom: #284e83;
$custom-light: #6d7fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#284e83",
  "rgb": {
    "r": 40,
    "g": 78,
    "b": 131
  },
  "hsl": {
    "h": 214.945,
    "s": 53.216,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42373,
    "c": 0.09868,
    "h": 257.1
  },
  "luminance": 0.07539
}

Semantic roles & 50–950 ramp

primary

#284E83

secondary

#B18B55

accent

#A04BDD

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080A0F

muted

#7B7C7F

Preview Lab

Preview with #284E83

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

Preview Lab → · Contrast checker → · Palette generator →