#577B87#577B87

#577B87 is a mid, muted cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.045 H 220.6°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#577B87
RGB	rgb(87, 123, 135)
HSL	hsl(195, 22%, 44%)
HSV	hsv(195, 36%, 53%)
CMYK	cmyk(35.6%, 8.9%, 0%, 47.1%)
CIE-LAB	lab(49.42, -9.51, -10.59)
CIE-LCH	lch(49.42, 14.23, 228.09°)
OKLab	oklab(56.03% -0.0339 -0.029)
OKLCH	oklch(56.03% 0.045 220.6)
XYZ	xyz(15.3852, 17.9406, 25.5692)
Luminance	0.1794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577B87 #876357

analogous

#57877B #577B87 #576387

triadic

#577B87 #87577B #7B8757

tetradic

#577B87 #7B5787 #876357 #638757

square

#577B87 #7B5787 #876357 #638757

split-complementary

#577B87 #875763 #877B57

monochromatic

#27373D #3F5962 #577B87 #759AA6 #9AB5BE

Accessibility & contrast

On white

4.58

#577B87 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#577B87 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577B87

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577B87	#FFFFFF	#000000	##000000
##577B87	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)

#747988

Deuteranopia (green-blind)

#6C7387

Tritanopia (blue-blind)

#467F7F

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #577b87;
/* rgb */ color: rgb(87, 123, 135);
/* oklch */ color: oklch(56.0% 0.045 220.6);

Tailwind

colors: {
  custom: {
    50: '#88a1aa',
    500: '#577b87',
    950: '#000000',
  },
}

SCSS

$custom: #577b87;
$custom-light: #88a1aa;
$custom-dark: #000000;

JSON

{
  "hex": "#577b87",
  "rgb": {
    "r": 87,
    "g": 123,
    "b": 135
  },
  "hsl": {
    "h": 195,
    "s": 21.622,
    "l": 43.529
  },
  "oklch": {
    "l": 0.56028,
    "c": 0.0446,
    "h": 220.6
  },
  "luminance": 0.17941
}

Semantic roles & 50–950 ramp

primary

#577B87

secondary

#AC958E

accent

#7F6ABE

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #577B87

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

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