#3967B1#3967B1

#3967B1 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.9% C 0.128 H 259.5°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#3967B1
RGB	rgb(57, 103, 177)
HSL	hsl(217, 51%, 46%)
HSV	hsv(217, 68%, 69%)
CMYK	cmyk(67.8%, 41.8%, 0%, 30.6%)
CIE-LAB	lab(43.86, 8.96, -44.06)
CIE-LCH	lch(43.86, 44.96, 281.49°)
OKLab	oklab(51.87% -0.0233 -0.1257)
OKLCH	oklch(51.87% 0.128 259.5)
XYZ	xyz(14.4706, 13.7432, 43.4765)
Luminance	0.1374 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3967B1 #B18339

analogous

#39A3B1 #3967B1 #4739B1

triadic

#3967B1 #B13967 #67B139

tetradic

#3967B1 #B139A3 #B18339 #39B147

square

#3967B1 #B139A3 #B18339 #39B147

split-complementary

#3967B1 #B14739 #A3B139

monochromatic

#1B3154 #2A4C83 #3967B1 #5D87CB #8BA9DA

Accessibility & contrast

On white

5.60

#3967B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#3967B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3967B1

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3967B1	#FFFFFF	#000000	##FFFFFF
##3967B1	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456EB4

Deuteranopia (green-blind)

#3263AF

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3967b1;
/* rgb */ color: rgb(57, 103, 177);
/* oklch */ color: oklch(51.9% 0.128 259.5);

Tailwind

colors: {
  custom: {
    50: '#7d91c9',
    500: '#3967b1',
    950: '#000000',
  },
}

SCSS

$custom: #3967b1;
$custom-light: #7d91c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3967b1",
  "rgb": {
    "r": 57,
    "g": 103,
    "b": 177
  },
  "hsl": {
    "h": 217,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.51872,
    "c": 0.12784,
    "h": 259.5
  },
  "luminance": 0.13745
}

Semantic roles & 50–950 ramp

primary

#3967B1

secondary

#C4AB82

accent

#A44DDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3967B1

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

Preview Lab → · Contrast checker → · Palette generator →