#559BB1#559BB1

#559BB1 is a light, moderate cyan. Relative luminance 0.285; OKLCH L 65.2% C 0.078 H 220.5°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#559BB1
RGB	rgb(85, 155, 177)
HSL	hsl(194, 37%, 51%)
HSV	hsv(194, 52%, 69%)
CMYK	cmyk(52%, 12.4%, 0%, 30.6%)
CIE-LAB	lab(60.38, -15.84, -18.23)
CIE-LCH	lch(60.38, 24.16, 229.01°)
OKLab	oklab(65.21% -0.059 -0.0505)
OKLCH	oklch(65.21% 0.078 220.5)
XYZ	xyz(23.4005, 28.5463, 45.8633)
Luminance	0.2855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BB1 #B16B55

analogous

#55B199 #559BB1 #556DB1

triadic

#559BB1 #B1559B #9BB155

tetradic

#559BB1 #9955B1 #B16B55 #6DB155

square

#559BB1 #9955B1 #B16B55 #6DB155

split-complementary

#559BB1 #B1556D #B19955

monochromatic

#2C5360 #3F788A #559BB1 #7FB4C4 #A9CCD7

Accessibility & contrast

On white

3.13

#559BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#559BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559BB1

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BB1	#FFFFFF	#000000	##000000
##559BB1	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E98B2

Deuteranopia (green-blind)

#808DB1

Tritanopia (blue-blind)

#1AA2A2

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #559bb1;
/* rgb */ color: rgb(85, 155, 177);
/* oklch */ color: oklch(65.2% 0.078 220.5);

Tailwind

colors: {
  custom: {
    50: '#8bb8c8',
    500: '#559bb1',
    950: '#000000',
  },
}

SCSS

$custom: #559bb1;
$custom-light: #8bb8c8;
$custom-dark: #000000;

JSON

{
  "hex": "#559bb1",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 177
  },
  "hsl": {
    "h": 194.348,
    "s": 37.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.65214,
    "c": 0.07766,
    "h": 220.5
  },
  "luminance": 0.28548
}

Semantic roles & 50–950 ramp

primary

#559BB1

secondary

#C5A69D

accent

#765BCD

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #559BB1

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

Preview Lab → · Contrast checker → · Palette generator →