#577B83#577B83

#577B83 is a mid, muted cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.042 H 213.0°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#577B83
RGB	rgb(87, 123, 131)
HSL	hsl(191, 20%, 43%)
HSV	hsv(191, 34%, 51%)
CMYK	cmyk(33.6%, 6.1%, 0%, 48.6%)
CIE-LAB	lab(49.29, -10.57, -8.44)
CIE-LCH	lch(49.29, 13.52, 218.60°)
OKLab	oklab(55.88% -0.0356 -0.0231)
OKLCH	oklch(55.88% 0.042 213)
XYZ	xyz(15.1088, 17.8300, 24.1138)
Luminance	0.1783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B83 #835F57

analogous

#578375 #577B83 #576583

triadic

#577B83 #83577B #7B8357

tetradic

#577B83 #755783 #835F57 #658357

square

#577B83 #755783 #835F57 #658357

split-complementary

#577B83 #835765 #837557

monochromatic

#263639 #3F585E #577B83 #749AA3 #99B5BB

Accessibility & contrast

On white

4.60

#577B83 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#577B83 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #577B83

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B83	#FFFFFF	#000000	##FFFFFF
##577B83	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#757884

Deuteranopia (green-blind)

#6D7383

Tritanopia (blue-blind)

#477E7D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577b83;
/* rgb */ color: rgb(87, 123, 131);
/* oklch */ color: oklch(55.9% 0.042 213.0);

Tailwind

colors: {
  custom: {
    50: '#88a1a7',
    500: '#577b83',
    950: '#000000',
  },
}

SCSS

$custom: #577b83;
$custom-light: #88a1a7;
$custom-dark: #000000;

JSON

{
  "hex": "#577b83",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 131
  },
  "hsl": {
    "h": 190.909,
    "s": 20.183,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55876,
    "c": 0.04239,
    "h": 213
  },
  "luminance": 0.17831
}

Semantic roles & 50–950 ramp

primary

#577B83

secondary

#A9928D

accent

#7A6BBD

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0F0F

muted

#7C7E7F

Preview Lab

Preview with #577B83

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

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