#559FEB#559FEB

#559FEB is a light, vivid cyan. Relative luminance 0.327; OKLCH L 68.8% C 0.135 H 250.9°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#559FEB
RGB	rgb(85, 159, 235)
HSL	hsl(210, 79%, 63%)
HSV	hsv(210, 64%, 92%)
CMYK	cmyk(63.8%, 32.3%, 0%, 7.8%)
CIE-LAB	lab(63.94, 0.12, -45.07)
CIE-LCH	lch(63.94, 45.07, 270.15°)
OKLab	oklab(68.82% -0.044 -0.1275)
OKLCH	oklch(68.82% 0.135 250.9)
XYZ	xyz(31.1343, 32.7227, 83.2565)
Luminance	0.3273 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559FEB #EBA155

analogous

#55EAEB #559FEB #5655EB

triadic

#559FEB #EB559F #9FEB55

tetradic

#559FEB #EB55EA #EBA155 #55EB56

square

#559FEB #EB55EA #EBA155 #55EB56

split-complementary

#559FEB #EB5655 #EAEB55

monochromatic

#1562B1 #1E80E5 #559FEB #8CBEF1 #C3DDF8

Accessibility & contrast

On white

2.78

#559FEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#559FEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559FEB

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559FEB	#FFFFFF	#000000	##000000
##559FEB	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7EA3EE

Deuteranopia (green-blind)

#6994E9

Tritanopia (blue-blind)

#00B1BA

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #559feb;
/* rgb */ color: rgb(85, 159, 235);
/* oklch */ color: oklch(68.8% 0.135 250.9);

Tailwind

colors: {
  custom: {
    50: '#92bbf2',
    500: '#559feb',
    950: '#000000',
  },
}

SCSS

$custom: #559feb;
$custom-light: #92bbf2;
$custom-dark: #000000;

JSON

{
  "hex": "#559feb",
  "rgb": {
    "r": 85,
    "g": 159,
    "b": 235
  },
  "hsl": {
    "h": 210.4,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.68821,
    "c": 0.13491,
    "h": 250.9
  },
  "luminance": 0.32726
}

Semantic roles & 50–950 ramp

primary

#559FEB

secondary

#E9CEB3

accent

#740ADB

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #559FEB

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

Preview Lab → · Contrast checker → · Palette generator →