#577A91#577A91

#577A91 is a mid, muted cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.053 H 237.8°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#577A91
RGB	rgb(87, 122, 145)
HSL	hsl(204, 25%, 45%)
HSV	hsv(204, 40%, 57%)
CMYK	cmyk(40%, 15.9%, 0%, 43.1%)
CIE-LAB	lab(49.48, -6.18, -16.38)
CIE-LCH	lch(49.48, 17.51, 249.34°)
OKLab	oklab(56.19% -0.0285 -0.0452)
OKLCH	oklch(56.19% 0.053 237.8)
XYZ	xyz(15.9992, 17.9887, 29.4117)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A91 #916E57

analogous

#57918B #577A91 #575D91

triadic

#577A91 #91577A #7A9157

tetradic

#577A91 #8B5791 #916E57 #5D9157

square

#577A91 #8B5791 #916E57 #5D9157

split-complementary

#577A91 #91575D #918B57

monochromatic

#293A44 #405A6B #577A91 #7798AE #9EB5C5

Accessibility & contrast

On white

4.57

#577A91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#577A91 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A91

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A91	#FFFFFF	#000000	##000000
##577A91	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707992

Deuteranopia (green-blind)

#687391

Tritanopia (blue-blind)

#428081

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577a91;
/* rgb */ color: rgb(87, 122, 145);
/* oklch */ color: oklch(56.2% 0.053 237.8);

Tailwind

colors: {
  custom: {
    50: '#89a0b1',
    500: '#577a91',
    950: '#000000',
  },
}

SCSS

$custom: #577a91;
$custom-light: #89a0b1;
$custom-dark: #000000;

JSON

{
  "hex": "#577a91",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 145
  },
  "hsl": {
    "h": 203.793,
    "s": 25,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56193,
    "c": 0.05343,
    "h": 237.8
  },
  "luminance": 0.1799
}

Semantic roles & 50–950 ramp

primary

#577A91

secondary

#B29F92

accent

#8A66C1

background

#F8F9FA

surface

#F0F2F5

border

#CBCCCF

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577A91

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

Preview Lab → · Contrast checker → · Palette generator →