#577B8F#577B8F

#577B8F is a mid, muted cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.051 H 233.2°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#577B8F
RGB	rgb(87, 123, 143)
HSL	hsl(201, 24%, 45%)
HSV	hsv(201, 39%, 56%)
CMYK	cmyk(39.2%, 14%, 0%, 43.9%)
CIE-LAB	lab(49.71, -7.32, -14.87)
CIE-LCH	lch(49.71, 16.57, 243.80°)
OKLab	oklab(56.35% -0.0306 -0.0409)
OKLCH	oklch(56.35% 0.051 233.2)
XYZ	xyz(15.9697, 18.1744, 28.6478)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B8F #8F6B57

analogous

#578F87 #577B8F #575F8F

triadic

#577B8F #8F577B #7B8F57

tetradic

#577B8F #87578F #8F6B57 #5F8F57

square

#577B8F #87578F #8F6B57 #5F8F57

split-complementary

#577B8F #8F575F #8F8757

monochromatic

#293A43 #405A69 #577B8F #7799AC #9DB6C3

Accessibility & contrast

On white

4.53

#577B8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#577B8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B8F

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B8F	#FFFFFF	#000000	##000000
##577B8F	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727A90

Deuteranopia (green-blind)

#6A738F

Tritanopia (blue-blind)

#438081

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577b8f;
/* rgb */ color: rgb(87, 123, 143);
/* oklch */ color: oklch(56.3% 0.051 233.2);

Tailwind

colors: {
  custom: {
    50: '#89a1af',
    500: '#577b8f',
    950: '#000000',
  },
}

SCSS

$custom: #577b8f;
$custom-light: #89a1af;
$custom-dark: #000000;

JSON

{
  "hex": "#577b8f",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 143
  },
  "hsl": {
    "h": 201.429,
    "s": 24.348,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56346,
    "c": 0.05112,
    "h": 233.2
  },
  "luminance": 0.18175
}

Semantic roles & 50–950 ramp

primary

#577B8F

secondary

#B19C91

accent

#8767C1

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577B8F

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

Preview Lab → · Contrast checker → · Palette generator →