#559EE9#559EE9

#559EE9 is a light, vivid cyan. Relative luminance 0.323; OKLCH L 68.5% C 0.133 H 250.9°. Best body text is #000000 at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#559EE9
RGB	rgb(85, 158, 233)
HSL	hsl(210, 77%, 62%)
HSV	hsv(210, 64%, 91%)
CMYK	cmyk(63.5%, 32.2%, 0%, 8.6%)
CIE-LAB	lab(63.56, 0.03, -44.55)
CIE-LCH	lch(63.56, 44.55, 270.04°)
OKLab	oklab(68.5% -0.0436 -0.126)
OKLCH	oklch(68.5% 0.133 250.9)
XYZ	xyz(30.6758, 32.2652, 81.6862)
Luminance	0.3227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559EE9 #E9A055

analogous

#55E8E9 #559EE9 #5655E9

triadic

#559EE9 #E9559E #9EE955

tetradic

#559EE9 #E955E8 #E9A055 #55E956

square

#559EE9 #E955E8 #E9A055 #55E956

split-complementary

#559EE9 #E95655 #E8E955

monochromatic

#1661AD #1F7FE2 #559EE9 #8BBDF0 #C1DCF7

Accessibility & contrast

On white

2.82

#559EE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.45

#559EE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559EE9

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559EE9	#FFFFFF	#000000	##000000
##559EE9	1.00	2.82	7.45	7.45
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.45	21.00	1.00	1.00
##000000	7.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7DA2EC

Deuteranopia (green-blind)

#6994E8

Tritanopia (blue-blind)

#00AFB9

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #559ee9;
/* rgb */ color: rgb(85, 158, 233);
/* oklch */ color: oklch(68.5% 0.133 250.9);

Tailwind

colors: {
  custom: {
    50: '#92baf0',
    500: '#559ee9',
    950: '#000000',
  },
}

SCSS

$custom: #559ee9;
$custom-light: #92baf0;
$custom-dark: #000000;

JSON

{
  "hex": "#559ee9",
  "rgb": {
    "r": 85,
    "g": 158,
    "b": 233
  },
  "hsl": {
    "h": 210.405,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.68496,
    "c": 0.13336,
    "h": 250.9
  },
  "luminance": 0.32268
}

Semantic roles & 50–950 ramp

primary

#559EE9

secondary

#E8CDB2

accent

#740CD9

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559EE9

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

Preview Lab → · Contrast checker → · Palette generator →