#577A8B#577A8B

#577A8B is a mid, muted cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.048 H 229.6°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#577A8B
RGB	rgb(87, 122, 139)
HSL	hsl(200, 23%, 44%)
HSV	hsv(200, 37%, 55%)
CMYK	cmyk(37.4%, 12.2%, 0%, 45.5%)
CIE-LAB	lab(49.26, -7.85, -13.19)
CIE-LCH	lch(49.26, 15.35, 239.24°)
OKLab	oklab(55.95% -0.0309 -0.0362)
OKLCH	oklch(55.95% 0.048 229.6)
XYZ	xyz(15.5487, 17.8085, 27.0392)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A8B #8B6857

analogous

#578B82 #577A8B #57608B

triadic

#577A8B #8B577A #7A8B57

tetradic

#577A8B #82578B #8B6857 #608B57

square

#577A8B #82578B #8B6857 #608B57

split-complementary

#577A8B #8B5760 #8B8257

monochromatic

#283840 #3F5965 #577A8B #7698A9 #9CB5C1

Accessibility & contrast

On white

4.60

#577A8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#577A8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #577A8B

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A8B	#FFFFFF	#000000	##FFFFFF
##577A8B	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71798C

Deuteranopia (green-blind)

#6A728B

Tritanopia (blue-blind)

#447F7F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577a8b;
/* rgb */ color: rgb(87, 122, 139);
/* oklch */ color: oklch(55.9% 0.048 229.6);

Tailwind

colors: {
  custom: {
    50: '#88a0ac',
    500: '#577a8b',
    950: '#000000',
  },
}

SCSS

$custom: #577a8b;
$custom-light: #88a0ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577a8b",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 139
  },
  "hsl": {
    "h": 199.615,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55947,
    "c": 0.0476,
    "h": 229.6
  },
  "luminance": 0.17809
}

Semantic roles & 50–950 ramp

primary

#577A8B

secondary

#AE9A8F

accent

#8568BF

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #577A8B

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

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