#558CDB#558CDB

#558CDB is a light, vivid blue. Relative luminance 0.258; OKLCH L 63.8% C 0.133 H 257.5°. Best body text is #000000 at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#558CDB
RGB	rgb(85, 140, 219)
HSL	hsl(215, 65%, 60%)
HSV	hsv(215, 61%, 86%)
CMYK	cmyk(61.2%, 36.1%, 0%, 14.1%)
CIE-LAB	lab(57.85, 5.88, -45.80)
CIE-LCH	lch(57.85, 46.18, 277.32°)
OKLab	oklab(63.81% -0.0287 -0.1298)
OKLCH	oklch(63.81% 0.133 257.5)
XYZ	xyz(25.9060, 25.7996, 70.6187)
Luminance	0.2580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CDB #DBA455

analogous

#55CFDB #558CDB #6155DB

triadic

#558CDB #DB558C #8CDB55

tetradic

#558CDB #DB55CF #DBA455 #55DB61

square

#558CDB #DB55CF #DBA455 #55DB61

split-complementary

#558CDB #DB6155 #CFDB55

monochromatic

#205096 #2A6BC8 #558CDB #88AEE6 #BAD0F0

Accessibility & contrast

On white

3.41

#558CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.16

#558CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CDB

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CDB	#FFFFFF	#000000	##000000
##558CDB	1.00	3.41	6.16	6.16
#FFFFFF	3.41	1.00	21.00	21.00
#000000	6.16	21.00	1.00	1.00
##000000	6.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A92DE

Deuteranopia (green-blind)

#5885D9

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #558cdb;
/* rgb */ color: rgb(85, 140, 219);
/* oklch */ color: oklch(63.8% 0.133 257.5);

Tailwind

colors: {
  custom: {
    50: '#90ade6',
    500: '#558cdb',
    950: '#000000',
  },
}

SCSS

$custom: #558cdb;
$custom-light: #90ade6;
$custom-dark: #000000;

JSON

{
  "hex": "#558cdb",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 219
  },
  "hsl": {
    "h": 215.373,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.63806,
    "c": 0.13299,
    "h": 257.5
  },
  "luminance": 0.25802
}

Semantic roles & 50–950 ramp

primary

#558CDB

secondary

#E0CBAC

accent

#A340E8

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558CDB

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

Preview Lab → · Contrast checker → · Palette generator →