#555B9D#555B9D

#555B9D is a mid, moderate blue. Relative luminance 0.118; OKLCH L 49.7% C 0.105 H 277.9°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#555B9D
RGB	rgb(85, 91, 157)
HSL	hsl(235, 30%, 47%)
HSV	hsv(235, 46%, 62%)
CMYK	cmyk(45.9%, 42%, 0%, 38.4%)
CIE-LAB	lab(40.97, 15.77, -36.74)
CIE-LCH	lch(40.97, 39.98, 293.23°)
OKLab	oklab(49.71% 0.0145 -0.1038)
OKLCH	oklch(49.71% 0.105 277.9)
XYZ	xyz(13.5714, 11.8471, 33.4634)
Luminance	0.1185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555B9D #9D9755

analogous

#557F9D #555B9D #73559D

triadic

#555B9D #9D555B #5B9D55

tetradic

#555B9D #9D557F #9D9755 #559D73

square

#555B9D #9D557F #9D9755 #559D73

split-complementary

#555B9D #9D7355 #7F9D55

monochromatic

#2A2D4E #404475 #555B9D #797EB6 #A1A4CC

Accessibility & contrast

On white

6.23

#555B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#555B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555B9D

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555B9D	#FFFFFF	#000000	##FFFFFF
##555B9D	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4264A0

Deuteranopia (green-blind)

#3D5E9B

Tritanopia (blue-blind)

#3C6974

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #555b9d;
/* rgb */ color: rgb(85, 91, 157);
/* oklch */ color: oklch(49.7% 0.105 277.9);

Tailwind

colors: {
  custom: {
    50: '#8989ba',
    500: '#555b9d',
    950: '#000000',
  },
}

SCSS

$custom: #555b9d;
$custom-light: #8989ba;
$custom-dark: #000000;

JSON

{
  "hex": "#555b9d",
  "rgb": {
    "r": 85,
    "g": 91,
    "b": 157
  },
  "hsl": {
    "h": 235,
    "s": 29.752,
    "l": 47.451
  },
  "oklch": {
    "l": 0.49712,
    "c": 0.1048,
    "h": 277.9
  },
  "luminance": 0.11848
}

Semantic roles & 50–950 ramp

primary

#555B9D

secondary

#B9B695

accent

#BE62C6

background

#F8F8FB

surface

#F0F0F6

border

#CBCBD0

text

#0C0B11

muted

#7D7C80

Preview Lab

Preview with #555B9D

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

Preview Lab → · Contrast checker → · Palette generator →