#577E8F#577E8F

#577E8F is a mid, muted cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.051 H 227.0°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#577E8F
RGB	rgb(87, 126, 143)
HSL	hsl(198, 24%, 45%)
HSV	hsv(198, 39%, 56%)
CMYK	cmyk(39.2%, 11.9%, 0%, 43.9%)
CIE-LAB	lab(50.61, -9.03, -13.51)
CIE-LCH	lch(50.61, 16.25, 236.24°)
OKLab	oklab(57.06% -0.0347 -0.0371)
OKLCH	oklch(57.06% 0.051 227)
XYZ	xyz(16.3476, 18.9301, 28.7737)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E8F #8F6857

analogous

#578F84 #577E8F #57628F

triadic

#577E8F #8F577E #7E8F57

tetradic

#577E8F #84578F #8F6857 #628F57

square

#577E8F #84578F #8F6857 #628F57

split-complementary

#577E8F #8F5762 #8F8457

monochromatic

#293B43 #405C69 #577E8F #779CAC #9DB8C3

Accessibility & contrast

On white

4.39

#577E8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#577E8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E8F

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E8F	#FFFFFF	#000000	##000000
##577E8F	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#757C90

Deuteranopia (green-blind)

#6D768F

Tritanopia (blue-blind)

#428383

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577e8f;
/* rgb */ color: rgb(87, 126, 143);
/* oklch */ color: oklch(57.1% 0.051 227.0);

Tailwind

colors: {
  custom: {
    50: '#89a3af',
    500: '#577e8f',
    950: '#000000',
  },
}

SCSS

$custom: #577e8f;
$custom-light: #89a3af;
$custom-dark: #000000;

JSON

{
  "hex": "#577e8f",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 143
  },
  "hsl": {
    "h": 198.214,
    "s": 24.348,
    "l": 45.098
  },
  "oklch": {
    "l": 0.57058,
    "c": 0.0508,
    "h": 227
  },
  "luminance": 0.18931
}

Semantic roles & 50–950 ramp

primary

#577E8F

secondary

#B19B91

accent

#8267C1

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0C0F10

muted

#7D7F7F

Preview Lab

Preview with #577E8F

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

Preview Lab → · Contrast checker → · Palette generator →