#3955AB#3955AB

#3955AB is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.5% C 0.142 H 267.3°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#3955AB
RGB	rgb(57, 85, 171)
HSL	hsl(225, 50%, 45%)
HSV	hsv(225, 67%, 67%)
CMYK	cmyk(66.7%, 50.3%, 0%, 32.9%)
CIE-LAB	lab(38.39, 18.37, -49.31)
CIE-LCH	lch(38.39, 52.62, 290.44°)
OKLab	oklab(47.55% -0.0067 -0.1414)
OKLCH	oklch(47.55% 0.142 267.3)
XYZ	xyz(12.2840, 10.3060, 39.8621)
Luminance	0.1031 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955AB #AB8F39

analogous

#398EAB #3955AB #5639AB

triadic

#3955AB #AB3955 #55AB39

tetradic

#3955AB #AB398E #AB8F39 #39AB56

square

#3955AB #AB398E #AB8F39 #39AB56

split-complementary

#3955AB #AB5639 #8EAB39

monochromatic

#1A274F #2A3E7D #3955AB #5975C8 #879BD7

Accessibility & contrast

On white

6.86

#3955AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3955AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955AB

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955AB	#FFFFFF	#000000	##FFFFFF
##3955AB	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2560AE

Deuteranopia (green-blind)

#0155A9

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3955ab;
/* rgb */ color: rgb(57, 85, 171);
/* oklch */ color: oklch(47.5% 0.142 267.3);

Tailwind

colors: {
  custom: {
    50: '#7c84c5',
    500: '#3955ab',
    950: '#000000',
  },
}

SCSS

$custom: #3955ab;
$custom-light: #7c84c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3955ab",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 171
  },
  "hsl": {
    "h": 225.263,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47549,
    "c": 0.14153,
    "h": 267.3
  },
  "luminance": 0.10307
}

Semantic roles & 50–950 ramp

primary

#3955AB

secondary

#C1B17F

accent

#B74EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3955AB

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

Preview Lab → · Contrast checker → · Palette generator →