#3955B3#3955B3

#3955B3 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.153 H 267.8°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#3955B3
RGB	rgb(57, 85, 179)
HSL	hsl(226, 52%, 46%)
HSV	hsv(226, 68%, 70%)
CMYK	cmyk(68.2%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(38.93, 21.29, -53.15)
CIE-LCH	lch(38.93, 57.26, 291.83°)
OKLab	oklab(48.14% -0.0059 -0.1527)
OKLCH	oklch(48.14% 0.153 267.8)
XYZ	xyz(13.0697, 10.6203, 44.0002)
Luminance	0.1062 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955B3 #B39739

analogous

#3992B3 #3955B3 #5A39B3

triadic

#3955B3 #B33955 #55B339

tetradic

#3955B3 #B33992 #B39739 #39B35A

square

#3955B3 #B33992 #B39739 #39B35A

split-complementary

#3955B3 #B35A39 #92B339

monochromatic

#1B2956 #2A3F85 #3955B3 #5E77CC #8C9EDA

Accessibility & contrast

On white

6.72

#3955B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3955B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955B3

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955B3	#FFFFFF	#000000	##FFFFFF
##3955B3	1.00	6.72	3.12	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1962B6

Deuteranopia (green-blind)

#0056B1

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3955b3;
/* rgb */ color: rgb(57, 85, 179);
/* oklch */ color: oklch(48.1% 0.153 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e84ca',
    500: '#3955b3',
    950: '#000000',
  },
}

SCSS

$custom: #3955b3;
$custom-light: #7e84ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3955b3",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 226.23,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.48139,
    "c": 0.1528,
    "h": 267.8
  },
  "luminance": 0.10622
}

Semantic roles & 50–950 ramp

primary

#3955B3

secondary

#C5B683

accent

#BA4DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3955B3

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

Preview Lab → · Contrast checker → · Palette generator →