#577C8B#577C8B

#577C8B is a mid, muted cyan. Relative luminance 0.183; OKLCH L 56.4% C 0.048 H 225.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#577C8B
RGB	rgb(87, 124, 139)
HSL	hsl(197, 23%, 44%)
HSV	hsv(197, 37%, 55%)
CMYK	cmyk(37.4%, 10.8%, 0%, 45.5%)
CIE-LAB	lab(49.86, -8.99, -12.28)
CIE-LCH	lch(49.86, 15.22, 233.79°)
OKLab	oklab(56.42% -0.0336 -0.0337)
OKLCH	oklch(56.42% 0.048 225.1)
XYZ	xyz(15.7968, 18.3047, 27.1219)
Luminance	0.1831 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577C8B #8B6657

analogous

#578B80 #577C8B #57628B

triadic

#577C8B #8B577C #7C8B57

tetradic

#577C8B #80578B #8B6657 #628B57

square

#577C8B #80578B #8B6657 #628B57

split-complementary

#577C8B #8B5762 #8B8057

monochromatic

#283940 #3F5A65 #577C8B #769AA9 #9CB6C1

Accessibility & contrast

On white

4.51

#577C8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#577C8B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577C8B

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577C8B	#FFFFFF	#000000	##000000
##577C8B	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#747A8C

Deuteranopia (green-blind)

#6C748B

Tritanopia (blue-blind)

#448181

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577c8b;
/* rgb */ color: rgb(87, 124, 139);
/* oklch */ color: oklch(56.4% 0.048 225.1);

Tailwind

colors: {
  custom: {
    50: '#88a2ac',
    500: '#577c8b',
    950: '#000000',
  },
}

SCSS

$custom: #577c8b;
$custom-light: #88a2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#577c8b",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 139
  },
  "hsl": {
    "h": 197.308,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56423,
    "c": 0.04759,
    "h": 225.1
  },
  "luminance": 0.18306
}

Semantic roles & 50–950 ramp

primary

#577C8B

secondary

#AE988F

accent

#8168BF

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0F10

muted

#7C7E7F

Preview Lab

Preview with #577C8B

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

Preview Lab → · Contrast checker → · Palette generator →