#577CA4#577CA4

#577CA4 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.5% C 0.075 H 251.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#577CA4
RGB	rgb(87, 124, 164)
HSL	hsl(211, 31%, 49%)
HSV	hsv(211, 47%, 64%)
CMYK	cmyk(47%, 24.4%, 0%, 35.7%)
CIE-LAB	lab(50.83, -1.79, -25.42)
CIE-LCH	lch(50.83, 25.49, 265.97°)
OKLab	oklab(57.5% -0.0243 -0.0709)
OKLCH	oklch(57.5% 0.075 251.1)
XYZ	xyz(17.8367, 19.1207, 37.8655)
Luminance	0.1912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577CA4 #A47F57

analogous

#57A3A4 #577CA4 #5957A4

triadic

#577CA4 #A4577C #7CA457

tetradic

#577CA4 #A457A3 #A47F57 #57A459

square

#577CA4 #A457A3 #A47F57 #57A459

split-complementary

#577CA4 #A45957 #A3A457

monochromatic

#2D4054 #425E7C #577CA4 #7E9BBA #A6BAD0

Accessibility & contrast

On white

4.35

#577CA4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#577CA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577CA4

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577CA4	#FFFFFF	#000000	##000000
##577CA4	1.00	4.35	4.82	4.82
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA6

Deuteranopia (green-blind)

#6376A3

Tritanopia (blue-blind)

#37858A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #577ca4;
/* rgb */ color: rgb(87, 124, 164);
/* oklch */ color: oklch(57.5% 0.075 251.1);

Tailwind

colors: {
  custom: {
    50: '#8aa1bf',
    500: '#577ca4',
    950: '#000000',
  },
}

SCSS

$custom: #577ca4;
$custom-light: #8aa1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#577ca4",
  "rgb": {
    "r": 87,
    "g": 124,
    "b": 164
  },
  "hsl": {
    "h": 211.169,
    "s": 30.677,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57504,
    "c": 0.07491,
    "h": 251.1
  },
  "luminance": 0.19122
}

Semantic roles & 50–950 ramp

primary

#577CA4

secondary

#BDAC99

accent

#9661C7

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #577CA4

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

Preview Lab → · Contrast checker → · Palette generator →