#555EB7#555EB7

#555EB7 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.0% C 0.139 H 276.1°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#555EB7
RGB	rgb(85, 94, 183)
HSL	hsl(234, 40%, 53%)
HSV	hsv(234, 54%, 72%)
CMYK	cmyk(53.6%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(43.29, 22.18, -48.39)
CIE-LCH	lch(43.29, 53.24, 294.63°)
OKLab	oklab(51.97% 0.0148 -0.1379)
OKLCH	oklch(51.97% 0.139 276.1)
XYZ	xyz(16.2935, 13.3545, 46.5097)
Luminance	0.1336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555EB7 #B7AE55

analogous

#558FB7 #555EB7 #7D55B7

triadic

#555EB7 #B7555E #5EB755

tetradic

#555EB7 #B7558F #B7AE55 #55B77D

square

#555EB7 #B7558F #B7AE55 #55B77D

split-complementary

#555EB7 #B77D55 #8FB755

monochromatic

#2B3166 #3E4591 #555EB7 #8087C9 #ABAFDB

Accessibility & contrast

On white

5.72

#555EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#555EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555EB7

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555EB7	#FFFFFF	#000000	##FFFFFF
##555EB7	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346ABA

Deuteranopia (green-blind)

#2962B5

Tritanopia (blue-blind)

#287282

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #555eb7;
/* rgb */ color: rgb(85, 94, 183);
/* oklch */ color: oklch(52.0% 0.139 276.1);

Tailwind

colors: {
  custom: {
    50: '#8c8bcd',
    500: '#555eb7',
    950: '#000000',
  },
}

SCSS

$custom: #555eb7;
$custom-light: #8c8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#555eb7",
  "rgb": {
    "r": 85,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 234.49,
    "s": 40.496,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51967,
    "c": 0.13873,
    "h": 276.1
  },
  "luminance": 0.13356
}

Semantic roles & 50–950 ramp

primary

#555EB7

secondary

#C9C59F

accent

#C557D0

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0D0C13

muted

#7D7D82

Preview Lab

Preview with #555EB7

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

Preview Lab → · Contrast checker → · Palette generator →