#559CDB#559CDB

#559CDB is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.3% C 0.118 H 247.3°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#559CDB
RGB	rgb(85, 156, 219)
HSL	hsl(208, 65%, 60%)
HSV	hsv(208, 61%, 86%)
CMYK	cmyk(61.2%, 28.8%, 0%, 14.1%)
CIE-LAB	lab(62.36, -3.41, -38.71)
CIE-LCH	lch(62.36, 38.86, 264.97°)
OKLab	oklab(67.34% -0.0455 -0.1091)
OKLCH	oklch(67.34% 0.118 247.3)
XYZ	xyz(28.4163, 30.8200, 71.4554)
Luminance	0.3082 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CDB #DB9455

analogous

#55DBD7 #559CDB #5559DB

triadic

#559CDB #DB559C #9CDB55

tetradic

#559CDB #D755DB #DB9455 #59DB55

square

#559CDB #D755DB #DB9455 #59DB55

split-complementary

#559CDB #DB5559 #DBD755

monochromatic

#205E96 #2A7EC8 #559CDB #88B9E6 #BAD7F0

Accessibility & contrast

On white

2.93

#559CDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#559CDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CDB

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CDB	#FFFFFF	#000000	##000000
##559CDB	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)

#819EDE

Deuteranopia (green-blind)

#6F91DA

Tritanopia (blue-blind)

#00ABB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559cdb;
/* rgb */ color: rgb(85, 156, 219);
/* oklch */ color: oklch(67.3% 0.118 247.3);

Tailwind

colors: {
  custom: {
    50: '#90b9e6',
    500: '#559cdb',
    950: '#000000',
  },
}

SCSS

$custom: #559cdb;
$custom-light: #90b9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#559cdb",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 219
  },
  "hsl": {
    "h": 208.209,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.67338,
    "c": 0.11818,
    "h": 247.3
  },
  "luminance": 0.30823
}

Semantic roles & 50–950 ramp

primary

#559CDB

secondary

#E0C4AC

accent

#8F40E8

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559CDB

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

Preview Lab → · Contrast checker → · Palette generator →