#579BBB#579BBB

#579BBB is a light, moderate cyan. Relative luminance 0.291; OKLCH L 65.7% C 0.084 H 230.2°. Best body text is #000000 at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#579BBB
RGB	rgb(87, 155, 187)
HSL	hsl(199, 42%, 54%)
HSV	hsv(199, 53%, 73%)
CMYK	cmyk(53.5%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(60.83, -12.44, -23.18)
CIE-LCH	lch(60.83, 26.31, 241.77°)
OKLab	oklab(65.72% -0.0537 -0.0644)
OKLCH	oklch(65.72% 0.084 230.2)
XYZ	xyz(24.6181, 29.0547, 51.3149)
Luminance	0.2906 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BBB #BB7757

analogous

#57BBA9 #579BBB #5769BB

triadic

#579BBB #BB579B #9BBB57

tetradic

#579BBB #A957BB #BB7757 #69BB57

square

#579BBB #A957BB #BB7757 #69BB57

split-complementary

#579BBB #BB5769 #BBA957

monochromatic

#2C576C #3D7B97 #579BBB #83B5CD #AECFDE

Accessibility & contrast

On white

3.08

#579BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.81

#579BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BBB

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BBB	#FFFFFF	#000000	##000000
##579BBB	1.00	3.08	6.81	6.81
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.81	21.00	1.00	1.00
##000000	6.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BD

Deuteranopia (green-blind)

#7D8EBB

Tritanopia (blue-blind)

#11A4A5

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #579bbb;
/* rgb */ color: rgb(87, 155, 187);
/* oklch */ color: oklch(65.7% 0.084 230.2);

Tailwind

colors: {
  custom: {
    50: '#8db8cf',
    500: '#579bbb',
    950: '#000000',
  },
}

SCSS

$custom: #579bbb;
$custom-light: #8db8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#579bbb",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 199.2,
    "s": 42.373,
    "l": 53.725
  },
  "oklch": {
    "l": 0.65718,
    "c": 0.08385,
    "h": 230.2
  },
  "luminance": 0.29057
}

Semantic roles & 50–950 ramp

primary

#579BBB

secondary

#CCAFA2

accent

#7D56D2

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #579BBB

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

Preview Lab → · Contrast checker → · Palette generator →