#577A9F#577A9F

#577A9F is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.070 H 250.5°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#577A9F
RGB	rgb(87, 122, 159)
HSL	hsl(211, 29%, 48%)
HSV	hsv(211, 45%, 62%)
CMYK	cmyk(45.3%, 23.3%, 0%, 37.6%)
CIE-LAB	lab(50.03, -2.11, -23.74)
CIE-LCH	lch(50.03, 23.83, 264.91°)
OKLab	oklab(56.81% -0.0234 -0.066)
OKLCH	oklch(56.81% 0.07 250.5)
XYZ	xyz(17.1459, 18.4474, 35.4514)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577A9F #9F7C57

analogous

#579E9F #577A9F #58579F

triadic

#577A9F #9F577A #7A9F57

tetradic

#577A9F #9F579E #9F7C57 #579F58

square

#577A9F #9F579E #9F7C57 #579F58

split-complementary

#577A9F #9F5857 #9E9F57

monochromatic

#2C3D50 #415C77 #577A9F #7C99B7 #A3B8CD

Accessibility & contrast

On white

4.48

#577A9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#577A9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577A9F

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577A9F	#FFFFFF	#000000	##000000
##577A9F	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7BA1

Deuteranopia (green-blind)

#63749E

Tritanopia (blue-blind)

#3A8287

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #577a9f;
/* rgb */ color: rgb(87, 122, 159);
/* oklch */ color: oklch(56.8% 0.070 250.5);

Tailwind

colors: {
  custom: {
    50: '#8aa0bb',
    500: '#577a9f',
    950: '#000000',
  },
}

SCSS

$custom: #577a9f;
$custom-light: #8aa0bb;
$custom-dark: #000000;

JSON

{
  "hex": "#577a9f",
  "rgb": {
    "r": 87,
    "g": 122,
    "b": 159
  },
  "hsl": {
    "h": 210.833,
    "s": 29.268,
    "l": 48.235
  },
  "oklch": {
    "l": 0.56811,
    "c": 0.07007,
    "h": 250.5
  },
  "luminance": 0.18449
}

Semantic roles & 50–950 ramp

primary

#577A9F

secondary

#BBA997

accent

#9562C6

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E12

muted

#7D7E81

Preview Lab

Preview with #577A9F

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

Preview Lab → · Contrast checker → · Palette generator →