#555BE9#555BE9

#555BE9 is a mid, highly saturated blue. Relative luminance 0.153; OKLCH L 55.1% C 0.210 H 275.2°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#555BE9
RGB	rgb(85, 91, 233)
HSL	hsl(238, 77%, 62%)
HSV	hsv(238, 64%, 91%)
CMYK	cmyk(63.5%, 60.9%, 0%, 8.6%)
CIE-LAB	lab(46.04, 40.48, -72.65)
CIE-LCH	lch(46.04, 83.17, 299.13°)
OKLab	oklab(55.12% 0.0192 -0.2093)
OKLCH	oklch(55.12% 0.21 275.2)
XYZ	xyz(22.1905, 15.2948, 78.8578)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555BE9 #E9E355

analogous

#55A5E9 #555BE9 #9955E9

triadic

#555BE9 #E9555B #5BE955

tetradic

#555BE9 #E955A5 #E9E355 #55E999

square

#555BE9 #E955A5 #E9E355 #55E999

split-complementary

#555BE9 #E99955 #A5E955

monochromatic

#161DAD #1F27E2 #555BE9 #8B8FF0 #C1C4F7

Accessibility & contrast

On white

5.17

#555BE9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#555BE9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555BE9

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555BE9	#FFFFFF	#000000	##FFFFFF
##555BE9	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074EE

Deuteranopia (green-blind)

#0067E6

Tritanopia (blue-blind)

#007F99

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #555be9;
/* rgb */ color: rgb(85, 91, 233);
/* oklch */ color: oklch(55.1% 0.210 275.2);

Tailwind

colors: {
  custom: {
    50: '#9489f1',
    500: '#555be9',
    950: '#000000',
  },
}

SCSS

$custom: #555be9;
$custom-light: #9489f1;
$custom-dark: #000000;

JSON

{
  "hex": "#555be9",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 233
  },
  "hsl": {
    "h": 237.568,
    "s": 77.083,
    "l": 62.353
  },
  "oklch": {
    "l": 0.55116,
    "c": 0.21017,
    "h": 275.2
  },
  "luminance": 0.15297
}

Semantic roles & 50–950 ramp

primary

#555BE9

secondary

#E8E6B2

accent

#D10CD9

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0F0B17

muted

#7E7C85

Preview Lab

Preview with #555BE9

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

Preview Lab → · Contrast checker → · Palette generator →