#555BD6#555BD6

#555BD6 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.6% C 0.185 H 276.1°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#555BD6
RGB	rgb(85, 91, 214)
HSL	hsl(237, 61%, 59%)
HSV	hsv(237, 60%, 84%)
CMYK	cmyk(60.3%, 57.5%, 0%, 16.1%)
CIE-LAB	lab(44.61, 34.24, -64.18)
CIE-LCH	lch(44.61, 72.74, 298.08°)
OKLab	oklab(53.62% 0.0196 -0.1844)
OKLCH	oklch(53.62% 0.185 276.1)
XYZ	xyz(19.6211, 14.2670, 65.3251)
Luminance	0.1427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BD6 #D6D055

analogous

#559BD6 #555BD6 #8F55D6

triadic

#555BD6 #D6555B #5BD655

tetradic

#555BD6 #D6559B #D6D055 #55D68F

square

#555BD6 #D6559B #D6D055 #55D68F

split-complementary

#555BD6 #D68F55 #9BD655

monochromatic

#22278E #2E35C0 #555BD6 #868BE2 #B8BAEE

Accessibility & contrast

On white

5.45

#555BD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#555BD6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BD6

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BD6	#FFFFFF	#000000	##FFFFFF
##555BD6	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDA

Deuteranopia (green-blind)

#0064D4

Tritanopia (blue-blind)

#007990

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #555bd6;
/* rgb */ color: rgb(85, 91, 214);
/* oklch */ color: oklch(53.6% 0.185 276.1);

Tailwind

colors: {
  custom: {
    50: '#9189e3',
    500: '#555bd6',
    950: '#000000',
  },
}

SCSS

$custom: #555bd6;
$custom-light: #9189e3;
$custom-dark: #000000;

JSON

{
  "hex": "#555bd6",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 214
  },
  "hsl": {
    "h": 237.209,
    "s": 61.137,
    "l": 58.627
  },
  "oklch": {
    "l": 0.53619,
    "c": 0.18542,
    "h": 276.1
  },
  "luminance": 0.14269
}

Semantic roles & 50–950 ramp

primary

#555BD6

secondary

#DDDBAA

accent

#DD44E4

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #555BD6

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

Preview Lab → · Contrast checker → · Palette generator →