#558CDF#558CDF

#558CDF is a light, vivid blue. Relative luminance 0.260; OKLCH L 64.0% C 0.138 H 258.4°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#558CDF
RGB	rgb(85, 140, 223)
HSL	hsl(216, 68%, 60%)
HSV	hsv(216, 62%, 87%)
CMYK	cmyk(61.9%, 37.2%, 0%, 12.5%)
CIE-LAB	lab(58.05, 7.21, -47.71)
CIE-LCH	lch(58.05, 48.26, 278.60°)
OKLab	oklab(64.03% -0.0278 -0.1354)
OKLCH	oklch(64.03% 0.138 258.4)
XYZ	xyz(26.4390, 26.0127, 73.4254)
Luminance	0.2601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CDF #DFA855

analogous

#55D1DF #558CDF #6355DF

triadic

#558CDF #DF558C #8CDF55

tetradic

#558CDF #DF55D1 #DFA855 #55DF63

square

#558CDF #DF55D1 #DFA855 #55DF63

split-complementary

#558CDF #DF6355 #D1DF55

monochromatic

#1D509C #276AD0 #558CDF #89AFE9 #BCD2F2

Accessibility & contrast

On white

3.39

#558CDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#558CDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CDF

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CDF	#FFFFFF	#000000	##000000
##558CDF	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6893E2

Deuteranopia (green-blind)

#5586DD

Tritanopia (blue-blind)

#009FAB

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #558cdf;
/* rgb */ color: rgb(85, 140, 223);
/* oklch */ color: oklch(64.0% 0.138 258.4);

Tailwind

colors: {
  custom: {
    50: '#91ade9',
    500: '#558cdf',
    950: '#000000',
  },
}

SCSS

$custom: #558cdf;
$custom-light: #91ade9;
$custom-dark: #000000;

JSON

{
  "hex": "#558cdf",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 223
  },
  "hsl": {
    "h": 216.087,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.6403,
    "c": 0.13827,
    "h": 258.4
  },
  "luminance": 0.26015
}

Semantic roles & 50–950 ramp

primary

#558CDF

secondary

#E2CDAE

accent

#8615D0

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558CDF

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

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