#577EA5#577EA5

#577EA5 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.075 H 249.2°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577EA5
RGB	rgb(87, 126, 165)
HSL	hsl(210, 31%, 49%)
HSV	hsv(210, 47%, 65%)
CMYK	cmyk(47.3%, 23.6%, 0%, 35.3%)
CIE-LAB	lab(51.45, -2.66, -25.04)
CIE-LCH	lch(51.45, 25.18, 263.93°)
OKLab	oklab(58.01% -0.0265 -0.0698)
OKLCH	oklch(58.01% 0.075 249.2)
XYZ	xyz(18.1806, 19.6633, 38.4274)
Luminance	0.1966 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EA5 #A57E57

analogous

#57A5A5 #577EA5 #5757A5

triadic

#577EA5 #A5577E #7EA557

tetradic

#577EA5 #A557A5 #A57E57 #57A557

square

#577EA5 #A557A5 #A57E57 #57A557

split-complementary

#577EA5 #A55757 #A5A557

monochromatic

#2D4155 #425F7D #577EA5 #7E9DBB #A6BBD0

Accessibility & contrast

On white

4.26

#577EA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#577EA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EA5

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EA5	#FFFFFF	#000000	##000000
##577EA5	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)

#6E7FA7

Deuteranopia (green-blind)

#6577A4

Tritanopia (blue-blind)

#36878B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577ea5;
/* rgb */ color: rgb(87, 126, 165);
/* oklch */ color: oklch(58.0% 0.075 249.2);

Tailwind

colors: {
  custom: {
    50: '#8aa3bf',
    500: '#577ea5',
    950: '#000000',
  },
}

SCSS

$custom: #577ea5;
$custom-light: #8aa3bf;
$custom-dark: #000000;

JSON

{
  "hex": "#577ea5",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 165
  },
  "hsl": {
    "h": 210,
    "s": 30.952,
    "l": 49.412
  },
  "oklch": {
    "l": 0.5801,
    "c": 0.07461,
    "h": 249.2
  },
  "luminance": 0.19665
}

Semantic roles & 50–950 ramp

primary

#577EA5

secondary

#BEAC9A

accent

#9461C7

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577EA5

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

Preview Lab → · Contrast checker → · Palette generator →