#579BCC#579BCC

#579BCC is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.5% C 0.101 H 241.7°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#579BCC
RGB	rgb(87, 155, 204)
HSL	hsl(205, 53%, 57%)
HSV	hsv(205, 57%, 80%)
CMYK	cmyk(57.4%, 24%, 0%, 20%)
CIE-LAB	lab(61.50, -7.23, -31.67)
CIE-LCH	lch(61.50, 32.49, 257.13°)
OKLab	oklab(66.47% -0.0477 -0.0887)
OKLCH	oklch(66.47% 0.101 241.7)
XYZ	xyz(26.5469, 29.8262, 61.4731)
Luminance	0.2983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BCC #CC8857

analogous

#57CCC3 #579BCC #5761CC

triadic

#579BCC #CC579B #9BCC57

tetradic

#579BCC #C357CC #CC8857 #61CC57

square

#579BCC #C357CC #CC8857 #61CC57

split-complementary

#579BCC #CC5761 #CCC357

monochromatic

#275C81 #367DB0 #579BCC #86B7DA #B5D3E9

Accessibility & contrast

On white

3.01

#579BCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#579BCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BCC

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BCC	#FFFFFF	#000000	##000000
##579BCC	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859BCE

Deuteranopia (green-blind)

#758FCB

Tritanopia (blue-blind)

#00A7AC

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #579bcc;
/* rgb */ color: rgb(87, 155, 204);
/* oklch */ color: oklch(66.5% 0.101 241.7);

Tailwind

colors: {
  custom: {
    50: '#8fb8db',
    500: '#579bcc',
    950: '#000000',
  },
}

SCSS

$custom: #579bcc;
$custom-light: #8fb8db;
$custom-dark: #000000;

JSON

{
  "hex": "#579bcc",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 204
  },
  "hsl": {
    "h": 205.128,
    "s": 53.425,
    "l": 57.059
  },
  "oklch": {
    "l": 0.66475,
    "c": 0.10072,
    "h": 241.7
  },
  "luminance": 0.29829
}

Semantic roles & 50–950 ramp

primary

#579BCC

secondary

#D7BCA8

accent

#884BDD

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579BCC

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

Preview Lab → · Contrast checker → · Palette generator →