#577B8C#577B8C

#577B8C is a mid, muted cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.048 H 228.9°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#577B8C
RGB	rgb(87, 123, 140)
HSL	hsl(199, 23%, 45%)
HSV	hsv(199, 38%, 55%)
CMYK	cmyk(37.9%, 12.1%, 0%, 45.1%)
CIE-LAB	lab(49.60, -8.15, -13.27)
CIE-LCH	lch(49.60, 15.57, 238.45°)
OKLab	oklab(56.23% -0.0318 -0.0365)
OKLCH	oklch(56.23% 0.048 228.9)
XYZ	xyz(15.7455, 18.0847, 27.4669)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B8C #8C6857

analogous

#578C83 #577B8C #57618C

triadic

#577B8C #8C577B #7B8C57

tetradic

#577B8C #83578C #8C6857 #618C57

square

#577B8C #83578C #8C6857 #618C57

split-complementary

#577B8C #8C5761 #8C8357

monochromatic

#283941 #405A66 #577B8C #7699AA #9CB5C1

Accessibility & contrast

On white

4.55

#577B8C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#577B8C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B8C

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B8C	#FFFFFF	#000000	##000000
##577B8C	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#72798D

Deuteranopia (green-blind)

#6B738C

Tritanopia (blue-blind)

#448080

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577b8c;
/* rgb */ color: rgb(87, 123, 140);
/* oklch */ color: oklch(56.2% 0.048 228.9);

Tailwind

colors: {
  custom: {
    50: '#88a1ad',
    500: '#577b8c',
    950: '#000000',
  },
}

SCSS

$custom: #577b8c;
$custom-light: #88a1ad;
$custom-dark: #000000;

JSON

{
  "hex": "#577b8c",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 140
  },
  "hsl": {
    "h": 199.245,
    "s": 23.348,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56225,
    "c": 0.0484,
    "h": 228.9
  },
  "luminance": 0.18086
}

Semantic roles & 50–950 ramp

primary

#577B8C

secondary

#AF9A90

accent

#8468C0

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #577B8C

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

Preview Lab → · Contrast checker → · Palette generator →