#577F91#577F91

#577F91 is a mid, muted cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.052 H 227.8°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#577F91
RGB	rgb(87, 127, 145)
HSL	hsl(199, 25%, 45%)
HSV	hsv(199, 40%, 57%)
CMYK	cmyk(40%, 12.4%, 0%, 43.1%)
CIE-LAB	lab(50.98, -9.04, -14.12)
CIE-LCH	lch(50.98, 16.76, 237.35°)
OKLab	oklab(57.38% -0.0352 -0.0388)
OKLCH	oklch(57.38% 0.052 227.8)
XYZ	xyz(16.6289, 19.2483, 29.6216)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F91 #916957

analogous

#579186 #577F91 #576291

triadic

#577F91 #91577F #7F9157

tetradic

#577F91 #865791 #916957 #629157

square

#577F91 #865791 #916957 #629157

split-complementary

#577F91 #915762 #918657

monochromatic

#293C44 #405D6B #577F91 #779DAE #9EB9C5

Accessibility & contrast

On white

4.33

#577F91 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#577F91 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577F91

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F91	#FFFFFF	#000000	##000000
##577F91	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#767D92

Deuteranopia (green-blind)

#6D7791

Tritanopia (blue-blind)

#418485

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577f91;
/* rgb */ color: rgb(87, 127, 145);
/* oklch */ color: oklch(57.4% 0.052 227.8);

Tailwind

colors: {
  custom: {
    50: '#89a4b1',
    500: '#577f91',
    950: '#000000',
  },
}

SCSS

$custom: #577f91;
$custom-light: #89a4b1;
$custom-dark: #000000;

JSON

{
  "hex": "#577f91",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 145
  },
  "hsl": {
    "h": 198.621,
    "s": 25,
    "l": 45.49
  },
  "oklch": {
    "l": 0.57376,
    "c": 0.05241,
    "h": 227.8
  },
  "luminance": 0.19249
}

Semantic roles & 50–950 ramp

primary

#577F91

secondary

#B29C92

accent

#8366C1

background

#F8FAFA

surface

#F0F4F5

border

#CBCECF

text

#0C0F10

muted

#7D7F7F

Preview Lab

Preview with #577F91

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

Preview Lab → · Contrast checker → · Palette generator →