#579BB5#579BB5

#579BB5 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.5% C 0.079 H 224.9°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#579BB5
RGB	rgb(87, 155, 181)
HSL	hsl(197, 39%, 53%)
HSV	hsv(197, 52%, 71%)
CMYK	cmyk(51.9%, 14.4%, 0%, 29%)
CIE-LAB	lab(60.61, -14.22, -20.14)
CIE-LCH	lch(60.61, 24.65, 234.77°)
OKLab	oklab(65.47% -0.0559 -0.0558)
OKLCH	oklch(65.47% 0.079 224.9)
XYZ	xyz(23.9892, 28.8031, 48.0025)
Luminance	0.2880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BB5 #B57157

analogous

#57B5A0 #579BB5 #576CB5

triadic

#579BB5 #B5579B #9BB557

tetradic

#579BB5 #A057B5 #B57157 #6CB557

square

#579BB5 #A057B5 #B57157 #6CB557

split-complementary

#579BB5 #B5576C #B5A057

monochromatic

#2D5565 #3F7990 #579BB5 #81B4C8 #ACCEDA

Accessibility & contrast

On white

3.11

#579BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#579BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BB5

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BB5	#FFFFFF	#000000	##000000
##579BB5	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D98B6

Deuteranopia (green-blind)

#7F8EB5

Tritanopia (blue-blind)

#1CA3A3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #579bb5;
/* rgb */ color: rgb(87, 155, 181);
/* oklch */ color: oklch(65.5% 0.079 224.9);

Tailwind

colors: {
  custom: {
    50: '#8db8cb',
    500: '#579bb5',
    950: '#000000',
  },
}

SCSS

$custom: #579bb5;
$custom-light: #8db8cb;
$custom-dark: #000000;

JSON

{
  "hex": "#579bb5",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 181
  },
  "hsl": {
    "h": 196.596,
    "s": 38.843,
    "l": 52.549
  },
  "oklch": {
    "l": 0.65467,
    "c": 0.07902,
    "h": 224.9
  },
  "luminance": 0.28805
}

Semantic roles & 50–950 ramp

primary

#579BB5

secondary

#C8AB9F

accent

#7A59CF

background

#F9FBFC

surface

#F1F6F8

border

#CBD0D1

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #579BB5

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

Preview Lab → · Contrast checker → · Palette generator →