#577EA4#577EA4

#577EA4 is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 58.0% C 0.073 H 248.6°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577EA4
RGB	rgb(87, 126, 164)
HSL	hsl(210, 31%, 49%)
HSV	hsv(210, 47%, 64%)
CMYK	cmyk(47%, 23.2%, 0%, 35.7%)
CIE-LAB	lab(51.41, -2.96, -24.52)
CIE-LCH	lch(51.41, 24.70, 263.11°)
OKLab	oklab(57.96% -0.0268 -0.0683)
OKLCH	oklch(57.96% 0.073 248.6)
XYZ	xyz(18.0899, 19.6271, 37.9499)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EA4 #A47D57

analogous

#57A4A4 #577EA4 #5758A4

triadic

#577EA4 #A4577E #7EA457

tetradic

#577EA4 #A457A4 #A47D57 #58A457

square

#577EA4 #A457A4 #A47D57 #58A457

split-complementary

#577EA4 #A45758 #A4A457

monochromatic

#2D4154 #425F7C #577EA4 #7E9CBA #A6BBD0

Accessibility & contrast

On white

4.26

#577EA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#577EA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EA4

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EA4	#FFFFFF	#000000	##000000
##577EA4	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7FA6

Deuteranopia (green-blind)

#6577A3

Tritanopia (blue-blind)

#36878B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577ea4;
/* rgb */ color: rgb(87, 126, 164);
/* oklch */ color: oklch(58.0% 0.073 248.6);

Tailwind

colors: {
  custom: {
    50: '#8aa3bf',
    500: '#577ea4',
    950: '#000000',
  },
}

SCSS

$custom: #577ea4;
$custom-light: #8aa3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#577ea4",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 164
  },
  "hsl": {
    "h": 209.61,
    "s": 30.677,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57964,
    "c": 0.07335,
    "h": 248.6
  },
  "luminance": 0.19628
}

Semantic roles & 50–950 ramp

primary

#577EA4

secondary

#BDAB99

accent

#9361C7

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577EA4

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

Preview Lab → · Contrast checker → · Palette generator →