#05283B#05283B

#05283B is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.3% C 0.052 H 237.6°. Best body text is #FFFFFF at 15.29:1 contrast (WCAG AA passes).

Color values

HEX	#05283B
RGB	rgb(5, 40, 59)
HSL	hsl(201, 84%, 13%)
HSV	hsv(201, 92%, 23%)
CMYK	cmyk(91.5%, 32.2%, 0%, 76.9%)
CIE-LAB	lab(14.76, -4.18, -15.65)
CIE-LCH	lch(14.76, 16.20, 255.04°)
OKLab	oklab(26.32% -0.0281 -0.0443)
OKLCH	oklch(26.32% 0.052 237.6)
XYZ	xyz(1.6105, 1.8654, 4.4120)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#05283B #3B1805

analogous

#053B33 #05283B #050D3B

triadic

#05283B #3B0528 #283B05

tetradic

#05283B #33053B #3B1805 #0D3B05

square

#05283B #33053B #3B1805 #0D3B05

split-complementary

#05283B #3B050D #3B3305

monochromatic

#02131C #02131C #05283B #0A4E73 #0F75AC

Accessibility & contrast

On white

15.29

#05283B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#05283B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #05283B

15.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##05283B	#FFFFFF	#000000	##FFFFFF
##05283B	1.00	15.29	1.37	15.29
#FFFFFF	15.29	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F283C

Deuteranopia (green-blind)

#18233B

Tritanopia (blue-blind)

#002D2F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #05283b;
/* rgb */ color: rgb(5, 40, 59);
/* oklch */ color: oklch(26.3% 0.052 237.6);

Tailwind

colors: {
  custom: {
    50: '#4f6171',
    500: '#05283b',
    950: '#000000',
  },
}

SCSS

$custom: #05283b;
$custom-light: #4f6171;
$custom-dark: #000000;

JSON

{
  "hex": "#05283b",
  "rgb": {
    "r": 5,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 201.111,
    "s": 84.375,
    "l": 12.549
  },
  "oklch": {
    "l": 0.26319,
    "c": 0.05247,
    "h": 237.6
  },
  "luminance": 0.01866
}

Semantic roles & 50–950 ramp

primary

#05283B

secondary

#7C4020

accent

#752DFB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #05283B

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

Preview Lab → · Contrast checker → · Palette generator →