#577C91#577C91

#577C91 is a mid, muted cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.053 H 233.8°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#577C91
RGB	rgb(87, 124, 145)
HSL	hsl(202, 25%, 45%)
HSV	hsv(202, 40%, 57%)
CMYK	cmyk(40%, 14.5%, 0%, 43.1%)
CIE-LAB	lab(50.08, -7.33, -15.48)
CIE-LCH	lch(50.08, 17.13, 244.65°)
OKLab	oklab(56.67% -0.0312 -0.0426)
OKLCH	oklch(56.67% 0.053 233.8)
XYZ	xyz(16.2473, 18.4849, 29.4944)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577C91 #916C57

analogous

#579189 #577C91 #575F91

triadic

#577C91 #91577C #7C9157

tetradic

#577C91 #895791 #916C57 #5F9157

square

#577C91 #895791 #916C57 #5F9157

split-complementary

#577C91 #91575F #918957

monochromatic

#293B44 #405B6B #577C91 #779AAE #9EB7C5

Accessibility & contrast

On white

4.47

#577C91 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#577C91 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577C91

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577C91	#FFFFFF	#000000	##000000
##577C91	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727B92

Deuteranopia (green-blind)

#6A7491

Tritanopia (blue-blind)

#418283

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577c91;
/* rgb */ color: rgb(87, 124, 145);
/* oklch */ color: oklch(56.7% 0.053 233.8);

Tailwind

colors: {
  custom: {
    50: '#89a1b1',
    500: '#577c91',
    950: '#000000',
  },
}

SCSS

$custom: #577c91;
$custom-light: #89a1b1;
$custom-dark: #000000;

JSON

{
  "hex": "#577c91",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 145
  },
  "hsl": {
    "h": 201.724,
    "s": 25,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56665,
    "c": 0.05283,
    "h": 233.8
  },
  "luminance": 0.18486
}

Semantic roles & 50–950 ramp

primary

#577C91

secondary

#B29D92

accent

#8766C1

background

#F8F9FA

surface

#F0F2F5

border

#CBCCCF

text

#0C0F10

muted

#7D7E7F

Preview Lab

Preview with #577C91

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

Preview Lab → · Contrast checker → · Palette generator →