#558BDD#558BDD

#558BDD is a light, vivid blue. Relative luminance 0.256; OKLCH L 63.7% C 0.137 H 258.5°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#558BDD
RGB	rgb(85, 139, 221)
HSL	hsl(216, 67%, 60%)
HSV	hsv(216, 62%, 87%)
CMYK	cmyk(61.5%, 37.1%, 0%, 13.3%)
CIE-LAB	lab(57.67, 7.14, -47.20)
CIE-LCH	lch(57.67, 47.74, 278.60°)
OKLab	oklab(63.7% -0.0272 -0.134)
OKLCH	oklch(63.7% 0.137 258.5)
XYZ	xyz(26.0255, 25.6146, 71.9652)
Luminance	0.2562 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BDD #DDA755

analogous

#55CFDD #558BDD #6355DD

triadic

#558BDD #DD558B #8BDD55

tetradic

#558BDD #DD55CF #DDA755 #55DD63

square

#558BDD #DD55CF #DDA755 #55DD63

split-complementary

#558BDD #DD6355 #CFDD55

monochromatic

#1F4F99 #296ACC #558BDD #88AEE7 #BBD1F1

Accessibility & contrast

On white

3.43

#558BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#558BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BDD

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BDD	#FFFFFF	#000000	##000000
##558BDD	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6891E0

Deuteranopia (green-blind)

#5585DB

Tritanopia (blue-blind)

#009EA9

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #558bdd;
/* rgb */ color: rgb(85, 139, 221);
/* oklch */ color: oklch(63.7% 0.137 258.5);

Tailwind

colors: {
  custom: {
    50: '#90ace8',
    500: '#558bdd',
    950: '#000000',
  },
}

SCSS

$custom: #558bdd;
$custom-light: #90ace8;
$custom-dark: #000000;

JSON

{
  "hex": "#558bdd",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 221
  },
  "hsl": {
    "h": 216.176,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.63701,
    "c": 0.13669,
    "h": 258.5
  },
  "luminance": 0.25617
}

Semantic roles & 50–950 ramp

primary

#558BDD

secondary

#E1CCAD

accent

#A63EEA

background

#F9FAFE

surface

#F2F4FC

border

#CCCED5

text

#0E1016

muted

#7E7F84

Preview Lab

Preview with #558BDD

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

Preview Lab → · Contrast checker → · Palette generator →