#558BDF#558BDF

#558BDF is a light, vivid blue. Relative luminance 0.257; OKLCH L 63.8% C 0.139 H 258.9°. Best body text is #000000 at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#558BDF
RGB	rgb(85, 139, 223)
HSL	hsl(217, 68%, 60%)
HSV	hsv(217, 62%, 87%)
CMYK	cmyk(61.9%, 37.7%, 0%, 12.5%)
CIE-LAB	lab(57.77, 7.81, -48.15)
CIE-LCH	lch(57.77, 48.78, 279.21°)
OKLab	oklab(63.81% -0.0267 -0.1367)
OKLCH	oklch(63.81% 0.139 258.9)
XYZ	xyz(26.2935, 25.7218, 73.3769)
Luminance	0.2572 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BDF #DFA955

analogous

#55D0DF #558BDF #6455DF

triadic

#558BDF #DF558B #8BDF55

tetradic

#558BDF #DF55D0 #DFA955 #55DF64

square

#558BDF #DF55D0 #DFA955 #55DF64

split-complementary

#558BDF #DF6455 #D0DF55

monochromatic

#1D4F9C #2769D0 #558BDF #89AEE9 #BCD1F2

Accessibility & contrast

On white

3.42

#558BDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.14

#558BDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BDF

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BDF	#FFFFFF	#000000	##000000
##558BDF	1.00	3.42	6.14	6.14
#FFFFFF	3.42	1.00	21.00	21.00
#000000	6.14	21.00	1.00	1.00
##000000	6.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6792E2

Deuteranopia (green-blind)

#5385DD

Tritanopia (blue-blind)

#009EAA

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #558bdf;
/* rgb */ color: rgb(85, 139, 223);
/* oklch */ color: oklch(63.8% 0.139 258.9);

Tailwind

colors: {
  custom: {
    50: '#91ace9',
    500: '#558bdf',
    950: '#000000',
  },
}

SCSS

$custom: #558bdf;
$custom-light: #91ace9;
$custom-dark: #000000;

JSON

{
  "hex": "#558bdf",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 223
  },
  "hsl": {
    "h": 216.522,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.63814,
    "c": 0.13934,
    "h": 258.9
  },
  "luminance": 0.25724
}

Semantic roles & 50–950 ramp

primary

#558BDF

secondary

#E2CEAE

accent

#8715D0

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558BDF

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

Preview Lab → · Contrast checker → · Palette generator →