#577F9C#577F9C

#577F9C is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 57.8% C 0.063 H 240.7°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#577F9C
RGB	rgb(87, 127, 156)
HSL	hsl(205, 28%, 48%)
HSV	hsv(205, 44%, 61%)
CMYK	cmyk(44.2%, 18.6%, 0%, 38.8%)
CIE-LAB	lab(51.39, -5.91, -19.91)
CIE-LCH	lch(51.39, 20.77, 253.47°)
OKLab	oklab(57.84% -0.0309 -0.0551)
OKLCH	oklch(57.84% 0.063 240.7)
XYZ	xyz(17.5186, 19.6041, 34.3069)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577F9C #9C7457

analogous

#579C96 #577F9C #575D9C

triadic

#577F9C #9C577F #7F9C57

tetradic

#577F9C #96579C #9C7457 #5D9C57

square

#577F9C #96579C #9C7457 #5D9C57

split-complementary

#577F9C #9C575D #9C9657

monochromatic

#2B3F4D #415F75 #577F9C #7B9DB5 #A2BACB

Accessibility & contrast

On white

4.27

#577F9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#577F9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577F9C

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577F9C	#FFFFFF	#000000	##000000
##577F9C	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727F9D

Deuteranopia (green-blind)

#69779B

Tritanopia (blue-blind)

#3B8689

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577f9c;
/* rgb */ color: rgb(87, 127, 156);
/* oklch */ color: oklch(57.8% 0.063 240.7);

Tailwind

colors: {
  custom: {
    50: '#8aa4b9',
    500: '#577f9c',
    950: '#000000',
  },
}

SCSS

$custom: #577f9c;
$custom-light: #8aa4b9;
$custom-dark: #000000;

JSON

{
  "hex": "#577f9c",
  "rgb": {
    "r": 87,
    "g": 127,
    "b": 156
  },
  "hsl": {
    "h": 205.217,
    "s": 28.395,
    "l": 47.647
  },
  "oklch": {
    "l": 0.57837,
    "c": 0.06324,
    "h": 240.7
  },
  "luminance": 0.19605
}

Semantic roles & 50–950 ramp

primary

#577F9C

secondary

#B9A596

accent

#8C63C5

background

#F8FAFB

surface

#F0F4F6

border

#CBCED0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #577F9C

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

Preview Lab → · Contrast checker → · Palette generator →