#577DB0#577DB0

#577DB0 is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.3% C 0.090 H 256.0°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#577DB0
RGB	rgb(87, 125, 176)
HSL	hsl(214, 36%, 52%)
HSV	hsv(214, 51%, 69%)
CMYK	cmyk(50.6%, 29%, 0%, 31%)
CIE-LAB	lab(51.64, 1.30, -31.11)
CIE-LCH	lch(51.64, 31.14, 272.39°)
OKLab	oklab(58.31% -0.0217 -0.0872)
OKLCH	oklch(58.31% 0.09 256)
XYZ	xyz(19.0979, 19.8267, 43.8864)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DB0 #B08A57

analogous

#57AAB0 #577DB0 #5E57B0

triadic

#577DB0 #B0577D #7DB057

tetradic

#577DB0 #B057AA #B08A57 #57B05E

square

#577DB0 #B057AA #B08A57 #57B05E

split-complementary

#577DB0 #B05E57 #AAB057

monochromatic

#2D4360 #416089 #577DB0 #819DC4 #AABDD7

Accessibility & contrast

On white

4.23

#577DB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#577DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DB0

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577DB0	#FFFFFF	#000000	##000000
##577DB0	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B2

Deuteranopia (green-blind)

#5E77AF

Tritanopia (blue-blind)

#2D888F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577db0;
/* rgb */ color: rgb(87, 125, 176);
/* oklch */ color: oklch(58.3% 0.090 256.0);

Tailwind

colors: {
  custom: {
    50: '#8ca2c8',
    500: '#577db0',
    950: '#000000',
  },
}

SCSS

$custom: #577db0;
$custom-light: #8ca2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#577db0",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 176
  },
  "hsl": {
    "h": 214.382,
    "s": 36.032,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58314,
    "c": 0.0899,
    "h": 256
  },
  "luminance": 0.19828
}

Semantic roles & 50–950 ramp

primary

#577DB0

secondary

#C5B49E

accent

#9C5CCC

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F13

muted

#7D7E82

Preview Lab

Preview with #577DB0

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

Preview Lab → · Contrast checker → · Palette generator →