#579BB9#579BB9

#579BB9 is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.6% C 0.082 H 228.5°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#579BB9
RGB	rgb(87, 155, 185)
HSL	hsl(198, 41%, 53%)
HSV	hsv(198, 53%, 73%)
CMYK	cmyk(53%, 16.2%, 0%, 27.5%)
CIE-LAB	lab(60.75, -13.04, -22.16)
CIE-LCH	lch(60.75, 25.72, 239.53°)
OKLab	oklab(65.63% -0.0544 -0.0616)
OKLCH	oklch(65.63% 0.082 228.5)
XYZ	xyz(24.4055, 28.9696, 50.1951)
Luminance	0.2897 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BB9 #B97557

analogous

#57B9A6 #579BB9 #576AB9

triadic

#579BB9 #B9579B #9BB957

tetradic

#579BB9 #A657B9 #B97557 #6AB957

square

#579BB9 #A657B9 #B97557 #6AB957

split-complementary

#579BB9 #B9576A #B9A657

monochromatic

#2C576A #3E7A95 #579BB9 #82B5CB #ADCEDD

Accessibility & contrast

On white

3.09

#579BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#579BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BB9

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BB9	#FFFFFF	#000000	##000000
##579BB9	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BB

Deuteranopia (green-blind)

#7D8EB9

Tritanopia (blue-blind)

#16A4A5

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #579bb9;
/* rgb */ color: rgb(87, 155, 185);
/* oklch */ color: oklch(65.6% 0.082 228.5);

Tailwind

colors: {
  custom: {
    50: '#8db8ce',
    500: '#579bb9',
    950: '#000000',
  },
}

SCSS

$custom: #579bb9;
$custom-light: #8db8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#579bb9",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 185
  },
  "hsl": {
    "h": 198.367,
    "s": 41.176,
    "l": 53.333
  },
  "oklch": {
    "l": 0.65633,
    "c": 0.08215,
    "h": 228.5
  },
  "luminance": 0.28972
}

Semantic roles & 50–950 ramp

primary

#579BB9

secondary

#CBAEA1

accent

#7C57D1

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #579BB9

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

Preview Lab → · Contrast checker → · Palette generator →