#579FCB#579FCB

#579FCB is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.3% C 0.097 H 237.4°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#579FCB
RGB	rgb(87, 159, 203)
HSL	hsl(203, 53%, 57%)
HSV	hsv(203, 57%, 80%)
CMYK	cmyk(57.1%, 21.7%, 0%, 20.4%)
CIE-LAB	lab(62.62, -9.77, -29.39)
CIE-LCH	lch(62.62, 30.97, 251.61°)
OKLab	oklab(67.35% -0.0525 -0.0821)
OKLCH	oklch(67.35% 0.097 237.4)
XYZ	xyz(27.1041, 31.1319, 61.0690)
Luminance	0.3113 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579FCB #CB8357

analogous

#57CBBD #579FCB #5765CB

triadic

#579FCB #CB579F #9FCB57

tetradic

#579FCB #BD57CB #CB8357 #65CB57

square

#579FCB #BD57CB #CB8357 #65CB57

split-complementary

#579FCB #CB5765 #CBBD57

monochromatic

#285E80 #3681AF #579FCB #86BAD9 #B4D4E8

Accessibility & contrast

On white

2.91

#579FCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#579FCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579FCB

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579FCB	#FFFFFF	#000000	##000000
##579FCB	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B9ECD

Deuteranopia (green-blind)

#7B92CA

Tritanopia (blue-blind)

#00AAAE

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #579fcb;
/* rgb */ color: rgb(87, 159, 203);
/* oklch */ color: oklch(67.3% 0.097 237.4);

Tailwind

colors: {
  custom: {
    50: '#8fbbdb',
    500: '#579fcb',
    950: '#000000',
  },
}

SCSS

$custom: #579fcb;
$custom-light: #8fbbdb;
$custom-dark: #000000;

JSON

{
  "hex": "#579fcb",
  "rgb": {
    "r": 87,
    "g": 159,
    "b": 203
  },
  "hsl": {
    "h": 202.759,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.67345,
    "c": 0.09747,
    "h": 237.4
  },
  "luminance": 0.31134
}

Semantic roles & 50–950 ramp

primary

#579FCB

secondary

#D7B9A7

accent

#824CDC

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579FCB

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

Preview Lab → · Contrast checker → · Palette generator →