#577A8F#577A8F

#577A8F is a mid, muted cyan. Relative luminance 0.179; OKLCH L 56.1% C 0.051 H 235.2°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#577A8F
RGB	rgb(87, 122, 143)
HSL	hsl(203, 24%, 45%)
HSV	hsv(203, 39%, 56%)
CMYK	cmyk(39.2%, 14.7%, 0%, 43.9%)
CIE-LAB	lab(49.41, -6.74, -15.32)
CIE-LCH	lch(49.41, 16.74, 246.25°)
OKLab	oklab(56.11% -0.0293 -0.0422)
OKLCH	oklch(56.11% 0.051 235.2)
XYZ	xyz(15.8463, 17.9276, 28.6067)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A8F #8F6C57

analogous

#578F88 #577A8F #575E8F

triadic

#577A8F #8F577A #7A8F57

tetradic

#577A8F #88578F #8F6C57 #5E8F57

square

#577A8F #88578F #8F6C57 #5E8F57

split-complementary

#577A8F #8F575E #8F8857

monochromatic

#293943 #405A69 #577A8F #7798AC #9DB5C3

Accessibility & contrast

On white

4.58

#577A8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#577A8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A8F

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A8F	#FFFFFF	#000000	##000000
##577A8F	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707990

Deuteranopia (green-blind)

#69738F

Tritanopia (blue-blind)

#438081

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577a8f;
/* rgb */ color: rgb(87, 122, 143);
/* oklch */ color: oklch(56.1% 0.051 235.2);

Tailwind

colors: {
  custom: {
    50: '#89a0af',
    500: '#577a8f',
    950: '#000000',
  },
}

SCSS

$custom: #577a8f;
$custom-light: #89a0af;
$custom-dark: #000000;

JSON

{
  "hex": "#577a8f",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 143
  },
  "hsl": {
    "h": 202.5,
    "s": 24.348,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5611,
    "c": 0.05137,
    "h": 235.2
  },
  "luminance": 0.17928
}

Semantic roles & 50–950 ramp

primary

#577A8F

secondary

#B19D91

accent

#8967C1

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577A8F

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

Preview Lab → · Contrast checker → · Palette generator →