#577991#577991

#577991 is a mid, muted cyan. Relative luminance 0.177; OKLCH L 56.0% C 0.054 H 239.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#577991
RGB	rgb(87, 121, 145)
HSL	hsl(205, 25%, 45%)
HSV	hsv(205, 40%, 57%)
CMYK	cmyk(40%, 16.6%, 0%, 43.1%)
CIE-LAB	lab(49.18, -5.60, -16.84)
CIE-LCH	lch(49.18, 17.75, 251.60°)
OKLab	oklab(55.96% -0.0272 -0.0465)
OKLCH	oklch(55.96% 0.054 239.7)
XYZ	xyz(15.8770, 17.7444, 29.3710)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577991 #916F57

analogous

#57918C #577991 #575C91

triadic

#577991 #915779 #799157

tetradic

#577991 #8C5791 #916F57 #5C9157

square

#577991 #8C5791 #916F57 #5C9157

split-complementary

#577991 #91575C #918C57

monochromatic

#293944 #40596B #577991 #7797AE #9EB5C5

Accessibility & contrast

On white

4.62

#577991 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#577991 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #577991

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577991	#FFFFFF	#000000	##FFFFFF
##577991	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7892

Deuteranopia (green-blind)

#677291

Tritanopia (blue-blind)

#427F81

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577991;
/* rgb */ color: rgb(87, 121, 145);
/* oklch */ color: oklch(56.0% 0.054 239.7);

Tailwind

colors: {
  custom: {
    50: '#899fb1',
    500: '#577991',
    950: '#000000',
  },
}

SCSS

$custom: #577991;
$custom-light: #899fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#577991",
  "rgb": {
    "r": 87,
    "g": 121,
    "b": 145
  },
  "hsl": {
    "h": 204.828,
    "s": 25,
    "l": 45.49
  },
  "oklch": {
    "l": 0.55958,
    "c": 0.05382,
    "h": 239.7
  },
  "luminance": 0.17745
}

Semantic roles & 50–950 ramp

primary

#577991

secondary

#B29F92

accent

#8C66C1

background

#F8F9FA

surface

#F0F2F5

border

#CBCCCF

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577991

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

Preview Lab → · Contrast checker → · Palette generator →