#555CD8#555CD8

#555CD8 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 54.0% C 0.187 H 275.7°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#555CD8
RGB	rgb(85, 92, 216)
HSL	hsl(237, 63%, 59%)
HSV	hsv(237, 61%, 85%)
CMYK	cmyk(60.6%, 57.4%, 0%, 15.3%)
CIE-LAB	lab(45.00, 34.28, -64.69)
CIE-LCH	lch(45.00, 73.21, 297.92°)
OKLab	oklab(53.95% 0.0187 -0.1859)
OKLCH	oklch(53.95% 0.187 275.7)
XYZ	xyz(19.9641, 14.5419, 66.7072)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555CD8 #D8D155

analogous

#559ED8 #555CD8 #9055D8

triadic

#555CD8 #D8555C #5CD855

tetradic

#555CD8 #D8559E #D8D155 #55D890

square

#555CD8 #D8559E #D8D155 #55D890

split-complementary

#555CD8 #D89055 #9ED855

monochromatic

#212791 #2D35C3 #555CD8 #878CE3 #B9BBEF

Accessibility & contrast

On white

5.37

#555CD8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#555CD8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555CD8

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555CD8	#FFFFFF	#000000	##FFFFFF
##555CD8	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070DC

Deuteranopia (green-blind)

#0065D5

Tritanopia (blue-blind)

#007A91

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #555cd8;
/* rgb */ color: rgb(85, 92, 216);
/* oklch */ color: oklch(54.0% 0.187 275.7);

Tailwind

colors: {
  custom: {
    50: '#918ae5',
    500: '#555cd8',
    950: '#000000',
  },
}

SCSS

$custom: #555cd8;
$custom-light: #918ae5;
$custom-dark: #000000;

JSON

{
  "hex": "#555cd8",
  "rgb": {
    "r": 85,
    "g": 92,
    "b": 216
  },
  "hsl": {
    "h": 236.794,
    "s": 62.679,
    "l": 59.02
  },
  "oklch": {
    "l": 0.53952,
    "c": 0.18683,
    "h": 275.7
  },
  "luminance": 0.14543
}

Semantic roles & 50–950 ramp

primary

#555CD8

secondary

#DEDBAB

accent

#DD42E6

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555CD8

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

Preview Lab → · Contrast checker → · Palette generator →