#577DAB#577DAB

#577DAB is a mid, moderate cyan. Relative luminance 0.196; OKLCH L 58.1% C 0.083 H 253.8°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#577DAB
RGB	rgb(87, 125, 171)
HSL	hsl(213, 33%, 51%)
HSV	hsv(213, 49%, 67%)
CMYK	cmyk(49.1%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(51.42, -0.25, -28.57)
CIE-LCH	lch(51.42, 28.57, 269.50°)
OKLab	oklab(58.07% -0.0232 -0.0799)
OKLCH	oklch(58.07% 0.083 253.8)
XYZ	xyz(18.6123, 19.6324, 41.3288)
Luminance	0.1963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577DAB #AB8557

analogous

#57A7AB #577DAB #5B57AB

triadic

#577DAB #AB577D #7DAB57

tetradic

#577DAB #AB57A7 #AB8557 #57AB5B

square

#577DAB #AB57A7 #AB8557 #57AB5B

split-complementary

#577DAB #AB5B57 #A7AB57

monochromatic

#2D425A #425F83 #577DAB #809DBF #A9BCD4

Accessibility & contrast

On white

4.26

#577DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#577DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577DAB

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

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

#6B7FAD

Deuteranopia (green-blind)

#6177AA

Tritanopia (blue-blind)

#31878D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577dab;
/* rgb */ color: rgb(87, 125, 171);
/* oklch */ color: oklch(58.1% 0.083 253.8);

Tailwind

colors: {
  custom: {
    50: '#8ba2c4',
    500: '#577dab',
    950: '#000000',
  },
}

SCSS

$custom: #577dab;
$custom-light: #8ba2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#577dab",
  "rgb": {
    "r": 87,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 212.857,
    "s": 33.333,
    "l": 50.588
  },
  "oklch": {
    "l": 0.58067,
    "c": 0.08321,
    "h": 253.8
  },
  "luminance": 0.19634
}

Semantic roles & 50–950 ramp

primary

#577DAB

secondary

#C2B19C

accent

#995EC9

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0F12

muted

#7D7E81

Preview Lab

Preview with #577DAB

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

Preview Lab → · Contrast checker → · Palette generator →