#283F52#283F52

#283F52 is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.7% C 0.044 H 244.4°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#283F52
RGB	rgb(40, 63, 82)
HSL	hsl(207, 34%, 24%)
HSV	hsv(207, 51%, 32%)
CMYK	cmyk(51.2%, 23.2%, 0%, 67.8%)
CIE-LAB	lab(25.61, -2.93, -14.24)
CIE-LCH	lch(25.61, 14.54, 258.38°)
OKLab	oklab(35.74% -0.019 -0.0396)
OKLCH	oklch(35.74% 0.044 244.4)
XYZ	xyz(4.1750, 4.6150, 8.6518)
Luminance	0.0461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283F52 #523B28

analogous

#285250 #283F52 #282A52

triadic

#283F52 #52283F #3F5228

tetradic

#283F52 #502852 #523B28 #2A5228

square

#283F52 #502852 #523B28 #2A5228

split-complementary

#283F52 #52282A #525028

monochromatic

#0A1015 #141F29 #283F52 #3C5F7B #507EA4

Accessibility & contrast

On white

10.92

#283F52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#283F52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283F52

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283F52	#FFFFFF	#000000	##FFFFFF
##283F52	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373F53

Deuteranopia (green-blind)

#323B52

Tritanopia (blue-blind)

#154445

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #283f52;
/* rgb */ color: rgb(40, 63, 82);
/* oklch */ color: oklch(35.7% 0.044 244.4);

Tailwind

colors: {
  custom: {
    50: '#657382',
    500: '#283f52',
    950: '#000000',
  },
}

SCSS

$custom: #283f52;
$custom-light: #657382;
$custom-dark: #000000;

JSON

{
  "hex": "#283f52",
  "rgb": {
    "r": 40,
    "g": 63,
    "b": 82
  },
  "hsl": {
    "h": 207.143,
    "s": 34.426,
    "l": 23.922
  },
  "oklch": {
    "l": 0.35735,
    "c": 0.04394,
    "h": 244.4
  },
  "luminance": 0.04615
}

Semantic roles & 50–950 ramp

primary

#283F52

secondary

#856851

accent

#8F5DCB

background

#F6F7F7

surface

#EBEDEE

border

#C6C8C9

text

#06080A

muted

#7A7B7C

Preview Lab

Preview with #283F52

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

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