#559ECF#559ECF

#559ECF is a light, moderate cyan. Relative luminance 0.309; OKLCH L 67.2% C 0.103 H 240.1°. Best body text is #000000 at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#559ECF
RGB	rgb(85, 158, 207)
HSL	hsl(204, 56%, 57%)
HSV	hsv(204, 59%, 81%)
CMYK	cmyk(58.9%, 23.7%, 0%, 18.8%)
CIE-LAB	lab(62.41, -8.36, -31.94)
CIE-LCH	lch(62.41, 33.02, 255.33°)
OKLab	oklab(67.21% -0.0515 -0.0895)
OKLCH	oklch(67.21% 0.103 240.1)
XYZ	xyz(27.2315, 30.8875, 63.5462)
Luminance	0.3089 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559ECF #CF8655

analogous

#55CFC3 #559ECF #5561CF

triadic

#559ECF #CF559E #9ECF55

tetradic

#559ECF #C355CF #CF8655 #61CF55

square

#559ECF #C355CF #CF8655 #61CF55

split-complementary

#559ECF #CF5561 #CFC355

monochromatic

#255E84 #3380B4 #559ECF #85B9DC #B4D4EA

Accessibility & contrast

On white

2.93

#559ECF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.18

#559ECF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559ECF

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559ECF	#FFFFFF	#000000	##000000
##559ECF	1.00	2.93	7.18	7.18
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.18	21.00	1.00	1.00
##000000	7.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889ED1

Deuteranopia (green-blind)

#7791CE

Tritanopia (blue-blind)

#00AAAF

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559ecf;
/* rgb */ color: rgb(85, 158, 207);
/* oklch */ color: oklch(67.2% 0.103 240.1);

Tailwind

colors: {
  custom: {
    50: '#8fbade',
    500: '#559ecf',
    950: '#000000',
  },
}

SCSS

$custom: #559ecf;
$custom-light: #8fbade;
$custom-dark: #000000;

JSON

{
  "hex": "#559ecf",
  "rgb": {
    "r": 85,
    "g": 158,
    "b": 207
  },
  "hsl": {
    "h": 204.098,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.67213,
    "c": 0.10326,
    "h": 240.1
  },
  "luminance": 0.3089
}

Semantic roles & 50–950 ramp

primary

#559ECF

secondary

#D9BBA7

accent

#8549DF

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559ECF

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

Preview Lab → · Contrast checker → · Palette generator →