#577D8B#577D8B

#577D8B is a mid, muted cyan. Relative luminance 0.186; OKLCH L 56.7% C 0.048 H 222.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#577D8B
RGB	rgb(87, 125, 139)
HSL	hsl(196, 23%, 44%)
HSV	hsv(196, 37%, 55%)
CMYK	cmyk(37.4%, 10.1%, 0%, 45.5%)
CIE-LAB	lab(50.16, -9.56, -11.83)
CIE-LCH	lch(50.16, 15.21, 231.05°)
OKLab	oklab(56.66% -0.0349 -0.0325)
OKLCH	oklch(56.66% 0.048 222.9)
XYZ	xyz(15.9227, 18.5566, 27.1639)
Luminance	0.1856 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577D8B #8B6557

analogous

#578B7F #577D8B #57638B

triadic

#577D8B #8B577D #7D8B57

tetradic

#577D8B #7F578B #8B6557 #638B57

square

#577D8B #7F578B #8B6557 #638B57

split-complementary

#577D8B #8B5763 #8B7F57

monochromatic

#283940 #3F5B65 #577D8B #769BA9 #9CB7C1

Accessibility & contrast

On white

4.46

#577D8B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#577D8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577D8B

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577D8B	#FFFFFF	#000000	##000000
##577D8B	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757B8C

Deuteranopia (green-blind)

#6D758B

Tritanopia (blue-blind)

#448281

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577d8b;
/* rgb */ color: rgb(87, 125, 139);
/* oklch */ color: oklch(56.7% 0.048 222.9);

Tailwind

colors: {
  custom: {
    50: '#88a2ac',
    500: '#577d8b',
    950: '#000000',
  },
}

SCSS

$custom: #577d8b;
$custom-light: #88a2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577d8b",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 139
  },
  "hsl": {
    "h": 196.154,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56662,
    "c": 0.04769,
    "h": 222.9
  },
  "luminance": 0.18558
}

Semantic roles & 50–950 ramp

primary

#577D8B

secondary

#AE988F

accent

#8068BF

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0B0F10

muted

#7C7F7F

Preview Lab

Preview with #577D8B

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

Preview Lab → · Contrast checker → · Palette generator →