#558DF4#558DF4

#558DF4 is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.165 H 261.5°. Best body text is #000000 at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#558DF4
RGB	rgb(85, 141, 244)
HSL	hsl(219, 88%, 65%)
HSV	hsv(219, 65%, 96%)
CMYK	cmyk(65.2%, 42.2%, 0%, 4.3%)
CIE-LAB	lab(59.44, 13.71, -57.15)
CIE-LCH	lch(59.44, 58.77, 283.49°)
OKLab	oklab(65.47% -0.0244 -0.1631)
OKLCH	oklch(65.47% 0.165 261.5)
XYZ	xyz(29.5945, 27.5098, 89.3207)
Luminance	0.2751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558DF4 #F4BC55

analogous

#55DCF4 #558DF4 #6D55F4

triadic

#558DF4 #F4558D #8DF455

tetradic

#558DF4 #F455DC #F4BC55 #55F46D

square

#558DF4 #F455DC #F4BC55 #55F46D

split-complementary

#558DF4 #F46D55 #DCF455

monochromatic

#0D4CC2 #1C66F0 #558DF4 #8EB4F8 #C8DAFB

Accessibility & contrast

On white

3.23

#558DF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.50

#558DF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558DF4

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558DF4	#FFFFFF	#000000	##000000
##558DF4	1.00	3.23	6.50	6.50
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.50	21.00	1.00	1.00
##000000	6.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D97F8

Deuteranopia (green-blind)

#4388F2

Tritanopia (blue-blind)

#00A5B5

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #558df4;
/* rgb */ color: rgb(85, 141, 244);
/* oklch */ color: oklch(65.5% 0.165 261.5);

Tailwind

colors: {
  custom: {
    50: '#94adf8',
    500: '#558df4',
    950: '#000000',
  },
}

SCSS

$custom: #558df4;
$custom-light: #94adf8;
$custom-dark: #000000;

JSON

{
  "hex": "#558df4",
  "rgb": {
    "r": 85,
    "g": 141,
    "b": 244
  },
  "hsl": {
    "h": 218.868,
    "s": 87.845,
    "l": 64.51
  },
  "oklch": {
    "l": 0.65474,
    "c": 0.16491,
    "h": 261.5
  },
  "luminance": 0.27513
}

Semantic roles & 50–950 ramp

primary

#558DF4

secondary

#EEDBB7

accent

#9401E4

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #558DF4

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

Preview Lab → · Contrast checker → · Palette generator →