#579BDF#579BDF

#579BDF is a light, vivid cyan. Relative luminance 0.308; OKLCH L 67.4% C 0.123 H 250.1°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#579BDF
RGB	rgb(87, 155, 223)
HSL	hsl(210, 68%, 61%)
HSV	hsv(210, 61%, 87%)
CMYK	cmyk(61%, 30.5%, 0%, 12.5%)
CIE-LAB	lab(62.33, -1.17, -40.95)
CIE-LCH	lch(62.33, 40.97, 268.37°)
OKLab	oklab(67.4% -0.0418 -0.1156)
OKLCH	oklch(67.4% 0.123 250.1)
XYZ	xyz(28.9662, 30.7939, 74.2150)
Luminance	0.3080 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BDF #DF9B57

analogous

#57DFDF #579BDF #5757DF

triadic

#579BDF #DF579B #9BDF57

tetradic

#579BDF #DF57DF #DF9B57 #57DF57

square

#579BDF #DF57DF #DF9B57 #57DF57

split-complementary

#579BDF #DF5757 #DFDF57

monochromatic

#1E5E9E #287CD1 #579BDF #8ABAE9 #BED8F3

Accessibility & contrast

On white

2.93

#579BDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#579BDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579BDF

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BDF	#FFFFFF	#000000	##000000
##579BDF	1.00	2.93	7.16	7.16
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9EE2

Deuteranopia (green-blind)

#6C91DE

Tritanopia (blue-blind)

#00ABB3

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #579bdf;
/* rgb */ color: rgb(87, 155, 223);
/* oklch */ color: oklch(67.4% 0.123 250.1);

Tailwind

colors: {
  custom: {
    50: '#92b8e9',
    500: '#579bdf',
    950: '#000000',
  },
}

SCSS

$custom: #579bdf;
$custom-light: #92b8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#579bdf",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 223
  },
  "hsl": {
    "h": 210,
    "s": 68,
    "l": 60.784
  },
  "oklch": {
    "l": 0.67402,
    "c": 0.12289,
    "h": 250.1
  },
  "luminance": 0.30797
}

Semantic roles & 50–950 ramp

primary

#579BDF

secondary

#E3C9AF

accent

#7316D0

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #579BDF

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

Preview Lab → · Contrast checker → · Palette generator →