#579BDD#579BDD

#579BDD is a light, vivid cyan. Relative luminance 0.307; OKLCH L 67.3% C 0.120 H 249.4°. Best body text is #000000 at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#579BDD
RGB	rgb(87, 155, 221)
HSL	hsl(210, 66%, 60%)
HSV	hsv(210, 61%, 87%)
CMYK	cmyk(60.6%, 29.9%, 0%, 13.3%)
CIE-LAB	lab(62.24, -1.82, -39.99)
CIE-LCH	lch(62.24, 40.03, 267.40°)
OKLab	oklab(67.3% -0.0424 -0.1128)
OKLCH	oklch(67.3% 0.12 249.4)
XYZ	xyz(28.6982, 30.6867, 72.8033)
Luminance	0.3069 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BDD #DD9957

analogous

#57DDDC #579BDD #5758DD

triadic

#579BDD #DD579B #9BDD57

tetradic

#579BDD #DC57DD #DD9957 #58DD57

square

#579BDD #DC57DD #DD9957 #58DD57

split-complementary

#579BDD #DD5758 #DDDC57

monochromatic

#1F5E9A #2A7DCD #579BDD #8AB9E7 #BDD8F2

Accessibility & contrast

On white

2.94

#579BDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.14

#579BDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579BDD

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BDD	#FFFFFF	#000000	##000000
##579BDD	1.00	2.94	7.14	7.14
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.14	21.00	1.00	1.00
##000000	7.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F9EE0

Deuteranopia (green-blind)

#6D91DC

Tritanopia (blue-blind)

#00AAB2

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #579bdd;
/* rgb */ color: rgb(87, 155, 221);
/* oklch */ color: oklch(67.3% 0.120 249.4);

Tailwind

colors: {
  custom: {
    50: '#91b8e8',
    500: '#579bdd',
    950: '#000000',
  },
}

SCSS

$custom: #579bdd;
$custom-light: #91b8e8;
$custom-dark: #000000;

JSON

{
  "hex": "#579bdd",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 221
  },
  "hsl": {
    "h": 209.552,
    "s": 66.337,
    "l": 60.392
  },
  "oklch": {
    "l": 0.67301,
    "c": 0.12046,
    "h": 249.4
  },
  "luminance": 0.30689
}

Semantic roles & 50–950 ramp

primary

#579BDD

secondary

#E1C8AE

accent

#7117CE

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #579BDD

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

Preview Lab → · Contrast checker → · Palette generator →