#577E90#577E90

#577E90 is a mid, muted cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.052 H 228.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#577E90
RGB	rgb(87, 126, 144)
HSL	hsl(199, 25%, 45%)
HSV	hsv(199, 40%, 56%)
CMYK	cmyk(39.6%, 12.5%, 0%, 43.5%)
CIE-LAB	lab(50.64, -8.75, -14.04)
CIE-LCH	lch(50.64, 16.54, 238.06°)
OKLab	oklab(57.1% -0.0343 -0.0386)
OKLCH	oklch(57.1% 0.052 228.4)
XYZ	xyz(16.4237, 18.9606, 29.1745)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E90 #906957

analogous

#579085 #577E90 #576290

triadic

#577E90 #90577E #7E9057

tetradic

#577E90 #855790 #906957 #629057

square

#577E90 #855790 #906957 #629057

split-complementary

#577E90 #905762 #908557

monochromatic

#293B44 #405D6A #577E90 #779CAD #9DB8C4

Accessibility & contrast

On white

4.38

#577E90 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#577E90 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E90

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E90	#FFFFFF	#000000	##000000
##577E90	1.00	4.38	4.79	4.79
#FFFFFF	4.38	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)

#757C91

Deuteranopia (green-blind)

#6C7690

Tritanopia (blue-blind)

#428384

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577e90;
/* rgb */ color: rgb(87, 126, 144);
/* oklch */ color: oklch(57.1% 0.052 228.4);

Tailwind

colors: {
  custom: {
    50: '#89a3b0',
    500: '#577e90',
    950: '#000000',
  },
}

SCSS

$custom: #577e90;
$custom-light: #89a3b0;
$custom-dark: #000000;

JSON

{
  "hex": "#577e90",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 144
  },
  "hsl": {
    "h": 198.947,
    "s": 24.675,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57098,
    "c": 0.05163,
    "h": 228.4
  },
  "luminance": 0.18962
}

Semantic roles & 50–950 ramp

primary

#577E90

secondary

#B29B91

accent

#8367C1

background

#F8FAFA

surface

#F0F3F4

border

#CBCDCE

text

#0C0F10

muted

#7D7F7F

Preview Lab

Preview with #577E90

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

Preview Lab → · Contrast checker → · Palette generator →