#559BD3#559BD3

#559BD3 is a light, moderate cyan. Relative luminance 0.301; OKLCH L 66.7% C 0.110 H 244.7°. Best body text is #000000 at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#559BD3
RGB	rgb(85, 155, 211)
HSL	hsl(207, 59%, 58%)
HSV	hsv(207, 60%, 83%)
CMYK	cmyk(59.7%, 26.5%, 0%, 17.3%)
CIE-LAB	lab(61.72, -5.41, -35.25)
CIE-LCH	lch(61.72, 35.67, 261.27°)
OKLab	oklab(66.72% -0.0469 -0.0991)
OKLCH	oklch(66.72% 0.11 244.7)
XYZ	xyz(27.2212, 30.0746, 65.9858)
Luminance	0.3008 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BD3 #D38D55

analogous

#55D3CC #559BD3 #555CD3

triadic

#559BD3 #D3559B #9BD355

tetradic

#559BD3 #CC55D3 #D38D55 #5CD355

square

#559BD3 #CC55D3 #D38D55 #5CD355

split-complementary

#559BD3 #D3555C #D3CC55

monochromatic

#245C8A #307DBB #559BD3 #86B8E0 #B6D4EC

Accessibility & contrast

On white

2.99

#559BD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.02

#559BD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BD3

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BD3	#FFFFFF	#000000	##000000
##559BD3	1.00	2.99	7.02	7.02
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.02	21.00	1.00	1.00
##000000	7.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839CD6

Deuteranopia (green-blind)

#728FD2

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #559bd3;
/* rgb */ color: rgb(85, 155, 211);
/* oklch */ color: oklch(66.7% 0.110 244.7);

Tailwind

colors: {
  custom: {
    50: '#8fb8e0',
    500: '#559bd3',
    950: '#000000',
  },
}

SCSS

$custom: #559bd3;
$custom-light: #8fb8e0;
$custom-dark: #000000;

JSON

{
  "hex": "#559bd3",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 211
  },
  "hsl": {
    "h": 206.667,
    "s": 58.879,
    "l": 58.039
  },
  "oklch": {
    "l": 0.6672,
    "c": 0.10962,
    "h": 244.7
  },
  "luminance": 0.30077
}

Semantic roles & 50–950 ramp

primary

#559BD3

secondary

#DBBFA9

accent

#8B46E2

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559BD3

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

Preview Lab → · Contrast checker → · Palette generator →