#283A52#283A52

#283A52 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.048 H 255.9°. Best body text is #FFFFFF at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#283A52
RGB	rgb(40, 58, 82)
HSL	hsl(214, 34%, 24%)
HSV	hsv(214, 51%, 32%)
CMYK	cmyk(51.2%, 29.3%, 0%, 67.8%)
CIE-LAB	lab(23.95, 0.40, -16.80)
CIE-LCH	lch(23.95, 16.81, 271.35°)
OKLab	oklab(34.43% -0.0118 -0.047)
OKLCH	oklch(34.43% 0.048 255.9)
XYZ	xyz(3.9106, 4.0862, 8.5636)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283A52 #524028

analogous

#284F52 #283A52 #2B2852

triadic

#283A52 #52283A #3A5228

tetradic

#283A52 #52284F #524028 #28522B

square

#283A52 #52284F #524028 #28522B

split-complementary

#283A52 #522B28 #4F5228

monochromatic

#0A0F15 #141D29 #283A52 #3C577B #5074A4

Accessibility & contrast

On white

11.56

#283A52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#283A52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283A52

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283A52	#FFFFFF	#000000	##FFFFFF
##283A52	1.00	11.56	1.82	11.56
#FFFFFF	11.56	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313B53

Deuteranopia (green-blind)

#2C3751

Tritanopia (blue-blind)

#173F42

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #283a52;
/* rgb */ color: rgb(40, 58, 82);
/* oklch */ color: oklch(34.4% 0.048 255.9);

Tailwind

colors: {
  custom: {
    50: '#647082',
    500: '#283a52',
    950: '#000000',
  },
}

SCSS

$custom: #283a52;
$custom-light: #647082;
$custom-dark: #000000;

JSON

{
  "hex": "#283a52",
  "rgb": {
    "r": 40,
    "g": 58,
    "b": 82
  },
  "hsl": {
    "h": 214.286,
    "s": 34.426,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34434,
    "c": 0.04843,
    "h": 255.9
  },
  "luminance": 0.04086
}

Semantic roles & 50–950 ramp

primary

#283A52

secondary

#856F51

accent

#9C5DCB

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #283A52

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

Preview Lab → · Contrast checker → · Palette generator →