#577C9C#577C9C

#577C9C is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.065 H 245.4°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#577C9C
RGB	rgb(87, 124, 156)
HSL	hsl(208, 28%, 48%)
HSV	hsv(208, 44%, 61%)
CMYK	cmyk(44.2%, 20.5%, 0%, 38.8%)
CIE-LAB	lab(50.50, -4.17, -21.27)
CIE-LCH	lch(50.50, 21.67, 258.90°)
OKLab	oklab(57.14% -0.027 -0.059)
OKLCH	oklch(57.14% 0.065 245.4)
XYZ	xyz(17.1369, 18.8407, 34.1797)
Luminance	0.1884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577C9C #9C7757

analogous

#579C99 #577C9C #575A9C

triadic

#577C9C #9C577C #7C9C57

tetradic

#577C9C #99579C #9C7757 #5A9C57

square

#577C9C #99579C #9C7757 #5A9C57

split-complementary

#577C9C #9C575A #9C9957

monochromatic

#2B3E4D #415D75 #577C9C #7B9AB5 #A2B8CB

Accessibility & contrast

On white

4.40

#577C9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#577C9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577C9C

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577C9C	#FFFFFF	#000000	##000000
##577C9C	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7C9E

Deuteranopia (green-blind)

#66759B

Tritanopia (blue-blind)

#3C8487

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #577c9c;
/* rgb */ color: rgb(87, 124, 156);
/* oklch */ color: oklch(57.1% 0.065 245.4);

Tailwind

colors: {
  custom: {
    50: '#8aa1b9',
    500: '#577c9c',
    950: '#000000',
  },
}

SCSS

$custom: #577c9c;
$custom-light: #8aa1b9;
$custom-dark: #000000;

JSON

{
  "hex": "#577c9c",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 156
  },
  "hsl": {
    "h": 207.826,
    "s": 28.395,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57137,
    "c": 0.06491,
    "h": 245.4
  },
  "luminance": 0.18842
}

Semantic roles & 50–950 ramp

primary

#577C9C

secondary

#B9A696

accent

#9063C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0F11

muted

#7D7E80

Preview Lab

Preview with #577C9C

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

Preview Lab → · Contrast checker → · Palette generator →