#283D52#283D52

#283D52 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.2% C 0.046 H 249.2°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#283D52
RGB	rgb(40, 61, 82)
HSL	hsl(210, 34%, 24%)
HSV	hsv(210, 51%, 32%)
CMYK	cmyk(51.2%, 25.6%, 0%, 67.8%)
CIE-LAB	lab(24.94, -1.61, -15.27)
CIE-LCH	lch(24.94, 15.35, 263.98°)
OKLab	oklab(35.21% -0.0161 -0.0425)
OKLCH	oklch(35.21% 0.046 249.2)
XYZ	xyz(4.0663, 4.3975, 8.6155)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283D52 #523D28

analogous

#285252 #283D52 #282852

triadic

#283D52 #52283D #3D5228

tetradic

#283D52 #522852 #523D28 #285228

square

#283D52 #522852 #523D28 #285228

split-complementary

#283D52 #522828 #525228

monochromatic

#0A0F15 #141E29 #283D52 #3C5C7B #507AA4

Accessibility & contrast

On white

11.17

#283D52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#283D52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283D52

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283D52	#FFFFFF	#000000	##FFFFFF
##283D52	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353E53

Deuteranopia (green-blind)

#2F3952

Tritanopia (blue-blind)

#164244

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283d52;
/* rgb */ color: rgb(40, 61, 82);
/* oklch */ color: oklch(35.2% 0.046 249.2);

Tailwind

colors: {
  custom: {
    50: '#657282',
    500: '#283d52',
    950: '#000000',
  },
}

SCSS

$custom: #283d52;
$custom-light: #657282;
$custom-dark: #000000;

JSON

{
  "hex": "#283d52",
  "rgb": {
    "r": 40,
    "g": 61,
    "b": 82
  },
  "hsl": {
    "h": 210,
    "s": 34.426,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35212,
    "c": 0.04551,
    "h": 249.2
  },
  "luminance": 0.04398
}

Semantic roles & 50–950 ramp

primary

#283D52

secondary

#856B51

accent

#945DCB

background

#F6F6F7

surface

#EBECEE

border

#C6C7C9

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #283D52

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

Preview Lab → · Contrast checker → · Palette generator →