#577B81#577B81

#577B81 is a mid, muted teal. Relative luminance 0.178; OKLCH L 55.8% C 0.042 H 208.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#577B81
RGB	rgb(87, 123, 129)
HSL	hsl(189, 19%, 42%)
HSV	hsv(189, 33%, 51%)
CMYK	cmyk(32.6%, 4.7%, 0%, 49.4%)
CIE-LAB	lab(49.22, -11.09, -7.35)
CIE-LCH	lch(49.22, 13.31, 213.56°)
OKLab	oklab(55.8% -0.0364 -0.0201)
OKLCH	oklch(55.8% 0.042 208.9)
XYZ	xyz(14.9746, 17.7763, 23.4068)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B81 #815D57

analogous

#578172 #577B81 #576681

triadic

#577B81 #81577B #7B8157

tetradic

#577B81 #725781 #815D57 #668157

square

#577B81 #725781 #815D57 #668157

split-complementary

#577B81 #815766 #817257

monochromatic

#263538 #3E585C #577B81 #749BA1 #99B5BA

Accessibility & contrast

On white

4.61

#577B81 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#577B81 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #577B81

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B81	#FFFFFF	#000000	##FFFFFF
##577B81	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#757881

Deuteranopia (green-blind)

#6E7381

Tritanopia (blue-blind)

#487E7D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577b81;
/* rgb */ color: rgb(87, 123, 129);
/* oklch */ color: oklch(55.8% 0.042 208.9);

Tailwind

colors: {
  custom: {
    50: '#88a1a5',
    500: '#577b81',
    950: '#000000',
  },
}

SCSS

$custom: #577b81;
$custom-light: #88a1a5;
$custom-dark: #000000;

JSON

{
  "hex": "#577b81",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 129
  },
  "hsl": {
    "h": 188.571,
    "s": 19.444,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55802,
    "c": 0.04159,
    "h": 208.9
  },
  "luminance": 0.17777
}

Semantic roles & 50–950 ramp

primary

#577B81

secondary

#A8908C

accent

#776CBC

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0F0F

muted

#7C7E7F

Preview Lab

Preview with #577B81

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

Preview Lab → · Contrast checker → · Palette generator →