#579BBF#579BBF

#579BBF is a light, moderate cyan. Relative luminance 0.292; OKLCH L 65.9% C 0.087 H 233.4°. Best body text is #000000 at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#579BBF
RGB	rgb(87, 155, 191)
HSL	hsl(201, 45%, 55%)
HSV	hsv(201, 54%, 75%)
CMYK	cmyk(54.5%, 18.8%, 0%, 25.1%)
CIE-LAB	lab(60.98, -11.24, -25.19)
CIE-LCH	lch(60.98, 27.58, 245.96°)
OKLab	oklab(65.89% -0.0522 -0.0702)
OKLCH	oklch(65.89% 0.087 233.4)
XYZ	xyz(25.0523, 29.2283, 53.6015)
Luminance	0.2923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BBF #BF7B57

analogous

#57BFAF #579BBF #5767BF

triadic

#579BBF #BF579B #9BBF57

tetradic

#579BBF #AF57BF #BF7B57 #67BF57

square

#579BBF #AF57BF #BF7B57 #67BF57

split-complementary

#579BBF #BF5767 #BFAF57

monochromatic

#2B5971 #3C7B9D #579BBF #83B5D0 #B0D0E1

Accessibility & contrast

On white

3.07

#579BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.85

#579BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BBF

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BBF	#FFFFFF	#000000	##000000
##579BBF	1.00	3.07	6.85	6.85
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.85	21.00	1.00	1.00
##000000	6.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A99C1

Deuteranopia (green-blind)

#7B8EBE

Tritanopia (blue-blind)

#04A5A7

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #579bbf;
/* rgb */ color: rgb(87, 155, 191);
/* oklch */ color: oklch(65.9% 0.087 233.4);

Tailwind

colors: {
  custom: {
    50: '#8eb8d2',
    500: '#579bbf',
    950: '#000000',
  },
}

SCSS

$custom: #579bbf;
$custom-light: #8eb8d2;
$custom-dark: #000000;

JSON

{
  "hex": "#579bbf",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 191
  },
  "hsl": {
    "h": 200.769,
    "s": 44.828,
    "l": 54.51
  },
  "oklch": {
    "l": 0.6589,
    "c": 0.08744,
    "h": 233.4
  },
  "luminance": 0.29231
}

Semantic roles & 50–950 ramp

primary

#579BBF

secondary

#CFB2A3

accent

#8053D5

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1114

muted

#7E8082

Preview Lab

Preview with #579BBF

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

Preview Lab → · Contrast checker → · Palette generator →