#558EE9#558EE9

#558EE9 is a light, vivid blue. Relative luminance 0.272; OKLCH L 65.0% C 0.149 H 259.4°. Best body text is #000000 at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#558EE9
RGB	rgb(85, 142, 233)
HSL	hsl(217, 77%, 62%)
HSV	hsv(217, 64%, 91%)
CMYK	cmyk(63.5%, 39.1%, 0%, 8.6%)
CIE-LAB	lab(59.12, 9.38, -51.58)
CIE-LCH	lch(59.12, 52.43, 280.31°)
OKLab	oklab(65.03% -0.0276 -0.1467)
OKLCH	oklch(65.03% 0.149 259.4)
XYZ	xyz(28.1221, 27.1578, 80.8350)
Luminance	0.2716 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EE9 #E9B055

analogous

#55D8E9 #558EE9 #6655E9

triadic

#558EE9 #E9558E #8EE955

tetradic

#558EE9 #E955D8 #E9B055 #55E966

square

#558EE9 #E955D8 #E9B055 #55E966

split-complementary

#558EE9 #E96655 #D8E955

monochromatic

#1650AD #1F6AE2 #558EE9 #8BB2F0 #C1D6F7

Accessibility & contrast

On white

3.26

#558EE9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.43

#558EE9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EE9

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EE9	#FFFFFF	#000000	##000000
##558EE9	1.00	3.26	6.43	6.43
#FFFFFF	3.26	1.00	21.00	21.00
#000000	6.43	21.00	1.00	1.00
##000000	6.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6696ED

Deuteranopia (green-blind)

#5088E7

Tritanopia (blue-blind)

#00A3B0

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #558ee9;
/* rgb */ color: rgb(85, 142, 233);
/* oklch */ color: oklch(65.0% 0.149 259.4);

Tailwind

colors: {
  custom: {
    50: '#92aef0',
    500: '#558ee9',
    950: '#000000',
  },
}

SCSS

$custom: #558ee9;
$custom-light: #92aef0;
$custom-dark: #000000;

JSON

{
  "hex": "#558ee9",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 233
  },
  "hsl": {
    "h": 216.892,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.65031,
    "c": 0.14931,
    "h": 259.4
  },
  "luminance": 0.2716
}

Semantic roles & 50–950 ramp

primary

#558EE9

secondary

#E8D3B2

accent

#8A0CD9

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558EE9

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

Preview Lab → · Contrast checker → · Palette generator →