#558EEB#558EEB

#558EEB is a light, vivid blue. Relative luminance 0.273; OKLCH L 65.1% C 0.152 H 259.7°. Best body text is #000000 at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#558EEB
RGB	rgb(85, 142, 235)
HSL	hsl(217, 79%, 63%)
HSV	hsv(217, 64%, 92%)
CMYK	cmyk(63.8%, 39.6%, 0%, 7.8%)
CIE-LAB	lab(59.23, 10.06, -52.52)
CIE-LCH	lch(59.23, 53.47, 280.84°)
OKLab	oklab(65.15% -0.0271 -0.1495)
OKLCH	oklch(65.15% 0.152 259.7)
XYZ	xyz(28.4094, 27.2727, 82.3482)
Luminance	0.2727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EEB #EBB255

analogous

#55D9EB #558EEB #6755EB

triadic

#558EEB #EB558E #8EEB55

tetradic

#558EEB #EB55D9 #EBB255 #55EB67

square

#558EEB #EB55D9 #EBB255 #55EB67

split-complementary

#558EEB #EB6755 #D9EB55

monochromatic

#1550B1 #1E6AE5 #558EEB #8CB2F1 #C3D7F8

Accessibility & contrast

On white

3.25

#558EEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.45

#558EEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EEB

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EEB	#FFFFFF	#000000	##000000
##558EEB	1.00	3.25	6.45	6.45
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.45	21.00	1.00	1.00
##000000	6.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6496EF

Deuteranopia (green-blind)

#4E88E9

Tritanopia (blue-blind)

#00A3B1

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #558eeb;
/* rgb */ color: rgb(85, 142, 235);
/* oklch */ color: oklch(65.1% 0.152 259.7);

Tailwind

colors: {
  custom: {
    50: '#92aef2',
    500: '#558eeb',
    950: '#000000',
  },
}

SCSS

$custom: #558eeb;
$custom-light: #92aef2;
$custom-dark: #000000;

JSON

{
  "hex": "#558eeb",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 235
  },
  "hsl": {
    "h": 217.2,
    "s": 78.947,
    "l": 62.745
  },
  "oklch": {
    "l": 0.65147,
    "c": 0.15194,
    "h": 259.7
  },
  "luminance": 0.27275
}

Semantic roles & 50–950 ramp

primary

#558EEB

secondary

#E9D4B3

accent

#8C0ADB

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558EEB

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

Preview Lab → · Contrast checker → · Palette generator →