#558CEF#558CEF

#558CEF is a light, vivid blue. Relative luminance 0.269; OKLCH L 65.0% C 0.159 H 261.2°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#558CEF
RGB	rgb(85, 140, 239)
HSL	hsl(219, 83%, 64%)
HSV	hsv(219, 64%, 94%)
CMYK	cmyk(64.4%, 41.4%, 0%, 6.3%)
CIE-LAB	lab(58.90, 12.61, -55.26)
CIE-LCH	lch(58.90, 56.68, 282.85°)
OKLab	oklab(64.96% -0.0244 -0.1576)
OKLCH	oklch(64.96% 0.159 261.2)
XYZ	xyz(28.6989, 26.9167, 85.3276)
Luminance	0.2692 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CEF #EFB855

analogous

#55D9EF #558CEF #6B55EF

triadic

#558CEF #EF558C #8CEF55

tetradic

#558CEF #EF55D9 #EFB855 #55EF6B

square

#558CEF #EF55D9 #EFB855 #55EF6B

split-complementary

#558CEF #EF6B55 #D9EF55

monochromatic

#114DB8 #1D66EA #558CEF #8DB2F4 #C5D8FA

Accessibility & contrast

On white

3.29

#558CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#558CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CEF

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CEF	#FFFFFF	#000000	##000000
##558CEF	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E95F3

Deuteranopia (green-blind)

#4787ED

Tritanopia (blue-blind)

#00A3B2

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #558cef;
/* rgb */ color: rgb(85, 140, 239);
/* oklch */ color: oklch(65.0% 0.159 261.2);

Tailwind

colors: {
  custom: {
    50: '#93adf5',
    500: '#558cef',
    950: '#000000',
  },
}

SCSS

$custom: #558cef;
$custom-light: #93adf5;
$custom-dark: #000000;

JSON

{
  "hex": "#558cef",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 239
  },
  "hsl": {
    "h": 218.571,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.64963,
    "c": 0.15944,
    "h": 261.2
  },
  "luminance": 0.26919
}

Semantic roles & 50–950 ramp

primary

#558CEF

secondary

#EBD8B5

accent

#9206DF

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558CEF

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

Preview Lab → · Contrast checker → · Palette generator →