#3955B4#3955B4

#3955B4 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.154 H 267.8°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3955B4
RGB	rgb(57, 85, 180)
HSL	hsl(226, 52%, 46%)
HSV	hsv(226, 68%, 71%)
CMYK	cmyk(68.3%, 52.8%, 0%, 29.4%)
CIE-LAB	lab(39.00, 21.66, -53.63)
CIE-LCH	lch(39.00, 57.84, 291.99°)
OKLab	oklab(48.21% -0.0058 -0.1541)
OKLCH	oklch(48.21% 0.154 267.8)
XYZ	xyz(13.1712, 10.6609, 44.5348)
Luminance	0.1066 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3955B4 #B49839

analogous

#3993B4 #3955B4 #5A39B4

triadic

#3955B4 #B43955 #55B439

tetradic

#3955B4 #B43993 #B49839 #39B45A

square

#3955B4 #B43993 #B49839 #39B45A

split-complementary

#3955B4 #B45A39 #93B439

monochromatic

#1C2957 #2A3F86 #3955B4 #5E77CC #8D9EDB

Accessibility & contrast

On white

6.70

#3955B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#3955B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3955B4

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3955B4	#FFFFFF	#000000	##FFFFFF
##3955B4	1.00	6.70	3.13	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1762B7

Deuteranopia (green-blind)

#0057B2

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3955b4;
/* rgb */ color: rgb(57, 85, 180);
/* oklch */ color: oklch(48.2% 0.154 267.8);

Tailwind

colors: {
  custom: {
    50: '#7e84cb',
    500: '#3955b4',
    950: '#000000',
  },
}

SCSS

$custom: #3955b4;
$custom-light: #7e84cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3955b4",
  "rgb": {
    "r": 57,
    "g": 85,
    "b": 180
  },
  "hsl": {
    "h": 226.341,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.48214,
    "c": 0.1542,
    "h": 267.8
  },
  "luminance": 0.10662
}

Semantic roles & 50–950 ramp

primary

#3955B4

secondary

#C5B683

accent

#BB4CDB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3955B4

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

Preview Lab → · Contrast checker → · Palette generator →