#577999#577999

#577999 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.063 H 247.5°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#577999
RGB	rgb(87, 121, 153)
HSL	hsl(209, 28%, 47%)
HSV	hsv(209, 43%, 60%)
CMYK	cmyk(43.1%, 20.9%, 0%, 40%)
CIE-LAB	lab(49.50, -3.30, -21.06)
CIE-LCH	lch(49.50, 21.31, 261.10°)
OKLab	oklab(56.31% -0.0242 -0.0584)
OKLCH	oklch(56.31% 0.063 247.5)
XYZ	xyz(16.5157, 17.9999, 32.7349)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577999 #997757

analogous

#579998 #577999 #575899

triadic

#577999 #995779 #799957

tetradic

#577999 #985799 #997757 #589957

square

#577999 #985799 #997757 #589957

split-complementary

#577999 #995758 #999857

monochromatic

#2B3B4B #415A72 #577999 #7A97B3 #A1B6C9

Accessibility & contrast

On white

4.57

#577999 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#577999 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577999

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577999	#FFFFFF	#000000	##000000
##577999	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C799B

Deuteranopia (green-blind)

#647398

Tritanopia (blue-blind)

#3E8084

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #577999;
/* rgb */ color: rgb(87, 121, 153);
/* oklch */ color: oklch(56.3% 0.063 247.5);

Tailwind

colors: {
  custom: {
    50: '#899fb7',
    500: '#577999',
    950: '#000000',
  },
}

SCSS

$custom: #577999;
$custom-light: #899fb7;
$custom-dark: #000000;

JSON

{
  "hex": "#577999",
  "rgb": {
    "r": 87,
    "g": 121,
    "b": 153
  },
  "hsl": {
    "h": 209.091,
    "s": 27.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56306,
    "c": 0.06322,
    "h": 247.5
  },
  "luminance": 0.18001
}

Semantic roles & 50–950 ramp

primary

#577999

secondary

#B7A595

accent

#9264C4

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #577999

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

Preview Lab → · Contrast checker → · Palette generator →