#283C53#283C53

#283C53 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 35.0% C 0.048 H 252.6°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#283C53
RGB	rgb(40, 60, 83)
HSL	hsl(212, 35%, 24%)
HSV	hsv(212, 52%, 33%)
CMYK	cmyk(51.8%, 27.7%, 0%, 67.5%)
CIE-LAB	lab(24.66, -0.60, -16.36)
CIE-LCH	lch(24.66, 16.38, 267.89°)
OKLab	oklab(35% -0.0143 -0.0457)
OKLCH	oklch(35% 0.048 252.6)
XYZ	xyz(4.0517, 4.3071, 8.7998)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283C53 #533F28

analogous

#285253 #283C53 #2A2853

triadic

#283C53 #53283C #3C5328

tetradic

#283C53 #532852 #533F28 #28532A

square

#283C53 #532852 #533F28 #28532A

split-complementary

#283C53 #532A28 #525328

monochromatic

#0A0F15 #141E2A #283C53 #3C5A7C #5078A6

Accessibility & contrast

On white

11.28

#283C53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#283C53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283C53

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283C53	#FFFFFF	#000000	##FFFFFF
##283C53	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333D54

Deuteranopia (green-blind)

#2E3953

Tritanopia (blue-blind)

#154144

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #283c53;
/* rgb */ color: rgb(40, 60, 83);
/* oklch */ color: oklch(35.0% 0.048 252.6);

Tailwind

colors: {
  custom: {
    50: '#657183',
    500: '#283c53',
    950: '#000000',
  },
}

SCSS

$custom: #283c53;
$custom-light: #657183;
$custom-dark: #000000;

JSON

{
  "hex": "#283c53",
  "rgb": {
    "r": 40,
    "g": 60,
    "b": 83
  },
  "hsl": {
    "h": 212.093,
    "s": 34.959,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35005,
    "c": 0.04788,
    "h": 252.6
  },
  "luminance": 0.04307
}

Semantic roles & 50–950 ramp

primary

#283C53

secondary

#866D51

accent

#985DCB

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #283C53

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

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