#558BDB#558BDB

#558BDB is a light, vivid blue. Relative luminance 0.255; OKLCH L 63.6% C 0.134 H 258.1°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#558BDB
RGB	rgb(85, 139, 219)
HSL	hsl(216, 65%, 60%)
HSV	hsv(216, 61%, 86%)
CMYK	cmyk(61.2%, 36.5%, 0%, 14.1%)
CIE-LAB	lab(57.57, 6.47, -46.24)
CIE-LCH	lch(57.57, 46.69, 277.97°)
OKLab	oklab(63.59% -0.0277 -0.1311)
OKLCH	oklch(63.59% 0.134 258.1)
XYZ	xyz(25.7606, 25.5087, 70.5702)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BDB #DBA555

analogous

#55CEDB #558BDB #6255DB

triadic

#558BDB #DB558B #8BDB55

tetradic

#558BDB #DB55CE #DBA555 #55DB62

square

#558BDB #DB55CE #DBA555 #55DB62

split-complementary

#558BDB #DB6255 #CEDB55

monochromatic

#204F96 #2A6AC8 #558BDB #88ADE6 #BAD0F0

Accessibility & contrast

On white

3.44

#558BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#558BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BDB

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BDB	#FFFFFF	#000000	##000000
##558BDB	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6991DE

Deuteranopia (green-blind)

#5685D9

Tritanopia (blue-blind)

#009DA9

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #558bdb;
/* rgb */ color: rgb(85, 139, 219);
/* oklch */ color: oklch(63.6% 0.134 258.1);

Tailwind

colors: {
  custom: {
    50: '#90ace6',
    500: '#558bdb',
    950: '#000000',
  },
}

SCSS

$custom: #558bdb;
$custom-light: #90ace6;
$custom-dark: #000000;

JSON

{
  "hex": "#558bdb",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 219
  },
  "hsl": {
    "h": 215.821,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63589,
    "c": 0.13404,
    "h": 258.1
  },
  "luminance": 0.25511
}

Semantic roles & 50–950 ramp

primary

#558BDB

secondary

#E0CBAC

accent

#A440E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558BDB

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

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