#577791#577791

#577791 is a mid, muted cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.055 H 243.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#577791
RGB	rgb(87, 119, 145)
HSL	hsl(207, 25%, 45%)
HSV	hsv(207, 40%, 57%)
CMYK	cmyk(40%, 17.9%, 0%, 43.1%)
CIE-LAB	lab(48.59, -4.44, -17.75)
CIE-LCH	lch(48.59, 18.29, 255.97°)
OKLab	oklab(55.49% -0.0245 -0.049)
OKLCH	oklch(55.49% 0.055 243.5)
XYZ	xyz(15.6365, 17.2633, 29.2908)
Luminance	0.1726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#577791 #917157

analogous

#57918E #577791 #575A91

triadic

#577791 #915777 #779157

tetradic

#577791 #8E5791 #917157 #5A9157

square

#577791 #8E5791 #917157 #5A9157

split-complementary

#577791 #91575A #918E57

monochromatic

#293844 #40586B #577791 #7795AE #9EB3C5

Accessibility & contrast

On white

4.72

#577791 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#577791 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #577791

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##577791	#FFFFFF	#000000	##FFFFFF
##577791	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7792

Deuteranopia (green-blind)

#657191

Tritanopia (blue-blind)

#427D7F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #577791;
/* rgb */ color: rgb(87, 119, 145);
/* oklch */ color: oklch(55.5% 0.055 243.5);

Tailwind

colors: {
  custom: {
    50: '#899eb1',
    500: '#577791',
    950: '#000000',
  },
}

SCSS

$custom: #577791;
$custom-light: #899eb1;
$custom-dark: #000000;

JSON

{
  "hex": "#577791",
  "rgb": {
    "r": 87,
    "g": 119,
    "b": 145
  },
  "hsl": {
    "h": 206.897,
    "s": 25,
    "l": 45.49
  },
  "oklch": {
    "l": 0.55488,
    "c": 0.05479,
    "h": 243.5
  },
  "luminance": 0.17264
}

Semantic roles & 50–950 ramp

primary

#577791

secondary

#B2A092

accent

#8F66C1

background

#F8F9FA

surface

#F0F2F5

border

#CBCCCF

text

#0C0E10

muted

#7D7E7F

Preview Lab

Preview with #577791

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

Preview Lab → · Contrast checker → · Palette generator →