#577EA7#577EA7

#577EA7 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.1% C 0.077 H 250.5°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#577EA7
RGB	rgb(87, 126, 167)
HSL	hsl(211, 31%, 50%)
HSV	hsv(211, 48%, 65%)
CMYK	cmyk(47.9%, 24.6%, 0%, 34.5%)
CIE-LAB	lab(51.54, -2.06, -26.07)
CIE-LCH	lch(51.54, 26.15, 265.48°)
OKLab	oklab(58.1% -0.0258 -0.0727)
OKLCH	oklch(58.1% 0.077 250.5)
XYZ	xyz(18.3640, 19.7367, 39.3936)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577EA7 #A78057

analogous

#57A6A7 #577EA7 #5857A7

triadic

#577EA7 #A7577E #7EA757

tetradic

#577EA7 #A757A6 #A78057 #57A758

square

#577EA7 #A757A6 #A78057 #57A758

split-complementary

#577EA7 #A75857 #A6A757

monochromatic

#2D4157 #42607F #577EA7 #7F9DBC #A7BCD1

Accessibility & contrast

On white

4.24

#577EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#577EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577EA7

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577EA7	#FFFFFF	#000000	##000000
##577EA7	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7FA9

Deuteranopia (green-blind)

#6477A6

Tritanopia (blue-blind)

#34878C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #577ea7;
/* rgb */ color: rgb(87, 126, 167);
/* oklch */ color: oklch(58.1% 0.077 250.5);

Tailwind

colors: {
  custom: {
    50: '#8ba3c1',
    500: '#577ea7',
    950: '#000000',
  },
}

SCSS

$custom: #577ea7;
$custom-light: #8ba3c1;
$custom-dark: #000000;

JSON

{
  "hex": "#577ea7",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 167
  },
  "hsl": {
    "h": 210.75,
    "s": 31.496,
    "l": 49.804
  },
  "oklch": {
    "l": 0.58104,
    "c": 0.07715,
    "h": 250.5
  },
  "luminance": 0.19738
}

Semantic roles & 50–950 ramp

primary

#577EA7

secondary

#BFAD9B

accent

#9560C8

background

#F8FAFB

surface

#F0F3F7

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577EA7

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

Preview Lab → · Contrast checker → · Palette generator →