#555DAD#555DAD

#555DAD is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.1% C 0.126 H 276.7°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#555DAD
RGB	rgb(85, 93, 173)
HSL	hsl(235, 35%, 51%)
HSV	hsv(235, 51%, 68%)
CMYK	cmyk(50.9%, 46.2%, 0%, 32.2%)
CIE-LAB	lab(42.42, 19.58, -43.92)
CIE-LCH	lch(42.42, 48.08, 294.02°)
OKLab	oklab(51.11% 0.0146 -0.1248)
OKLCH	oklch(51.11% 0.126 276.7)
XYZ	xyz(15.2011, 12.7762, 41.1921)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#555DAD #ADA555

analogous

#5589AD #555DAD #7955AD

triadic

#555DAD #AD555D #5DAD55

tetradic

#555DAD #AD5589 #ADA555 #55AD79

square

#555DAD #AD5589 #ADA555 #55AD79

split-complementary

#555DAD #AD7955 #89AD55

monochromatic

#2C305B #404685 #555DAD #7E84C1 #A8ACD5

Accessibility & contrast

On white

5.91

#555DAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#555DAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #555DAD

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##555DAD	#FFFFFF	#000000	##FFFFFF
##555DAD	1.00	5.91	3.56	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B68B0

Deuteranopia (green-blind)

#3261AB

Tritanopia (blue-blind)

#316E7C

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #555dad;
/* rgb */ color: rgb(85, 93, 173);
/* oklch */ color: oklch(51.1% 0.126 276.7);

Tailwind

colors: {
  custom: {
    50: '#8b8ac6',
    500: '#555dad',
    950: '#000000',
  },
}

SCSS

$custom: #555dad;
$custom-light: #8b8ac6;
$custom-dark: #000000;

JSON

{
  "hex": "#555dad",
  "rgb": {
    "r": 85,
    "g": 93,
    "b": 173
  },
  "hsl": {
    "h": 234.545,
    "s": 34.921,
    "l": 50.588
  },
  "oklch": {
    "l": 0.51114,
    "c": 0.12565,
    "h": 276.7
  },
  "luminance": 0.12777
}

Semantic roles & 50–950 ramp

primary

#555DAD

secondary

#C2BF9B

accent

#C15DCB

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #555DAD

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

Preview Lab → · Contrast checker → · Palette generator →