#577E9F#577E9F

#577E9F is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.067 H 244.9°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#577E9F
RGB	rgb(87, 126, 159)
HSL	hsl(208, 29%, 48%)
HSV	hsv(208, 45%, 62%)
CMYK	cmyk(45.3%, 20.8%, 0%, 37.6%)
CIE-LAB	lab(51.21, -4.45, -21.93)
CIE-LCH	lch(51.21, 22.38, 258.52°)
OKLab	oklab(57.74% -0.0286 -0.0609)
OKLCH	oklch(57.74% 0.067 244.9)
XYZ	xyz(17.6472, 19.4500, 35.6185)
Luminance	0.1945 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577E9F #9F7857

analogous

#579F9C #577E9F #575A9F

triadic

#577E9F #9F577E #7E9F57

tetradic

#577E9F #9C579F #9F7857 #5A9F57

square

#577E9F #9C579F #9F7857 #5A9F57

split-complementary

#577E9F #9F575A #9F9C57

monochromatic

#2C3F50 #415F77 #577E9F #7C9CB7 #A3BACD

Accessibility & contrast

On white

4.29

#577E9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#577E9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #577E9F

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577E9F	#FFFFFF	#000000	##000000
##577E9F	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707EA1

Deuteranopia (green-blind)

#67779E

Tritanopia (blue-blind)

#3A8689

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #577e9f;
/* rgb */ color: rgb(87, 126, 159);
/* oklch */ color: oklch(57.7% 0.067 244.9);

Tailwind

colors: {
  custom: {
    50: '#8aa3bb',
    500: '#577e9f',
    950: '#000000',
  },
}

SCSS

$custom: #577e9f;
$custom-light: #8aa3bb;
$custom-dark: #000000;

JSON

{
  "hex": "#577e9f",
  "rgb": {
    "r": 87,
    "g": 126,
    "b": 159
  },
  "hsl": {
    "h": 207.5,
    "s": 29.268,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57736,
    "c": 0.06726,
    "h": 244.9
  },
  "luminance": 0.19451
}

Semantic roles & 50–950 ramp

primary

#577E9F

secondary

#BBA797

accent

#9062C6

background

#F8FAFB

surface

#F0F3F6

border

#CBCDD0

text

#0C0F12

muted

#7D7F81

Preview Lab

Preview with #577E9F

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

Preview Lab → · Contrast checker → · Palette generator →