#3961BD#3961BD

#3961BD is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.4% C 0.152 H 264.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3961BD
RGB	rgb(57, 97, 189)
HSL	hsl(222, 54%, 48%)
HSV	hsv(222, 70%, 74%)
CMYK	cmyk(69.8%, 48.7%, 0%, 25.9%)
CIE-LAB	lab(42.90, 17.18, -52.61)
CIE-LCH	lch(42.90, 55.34, 288.09°)
OKLab	oklab(51.37% -0.0156 -0.1509)
OKLCH	oklch(51.37% 0.152 264.1)
XYZ	xyz(15.1441, 13.0918, 49.8631)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961BD #BD9539

analogous

#39A3BD #3961BD #5339BD

triadic

#3961BD #BD3961 #61BD39

tetradic

#3961BD #BD39A3 #BD9539 #39BD53

square

#3961BD #BD39A3 #BD9539 #39BD53

split-complementary

#3961BD #BD5339 #A3BD39

monochromatic

#1D315F #2B498E #3961BD #6384D0 #92A9DE

Accessibility & contrast

On white

5.80

#3961BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3961BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961BD

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961BD	#FFFFFF	#000000	##FFFFFF
##3961BD	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E6CC0

Deuteranopia (green-blind)

#0660BB

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3961bd;
/* rgb */ color: rgb(57, 97, 189);
/* oklch */ color: oklch(51.4% 0.152 264.1);

Tailwind

colors: {
  custom: {
    50: '#7f8dd1',
    500: '#3961bd',
    950: '#000000',
  },
}

SCSS

$custom: #3961bd;
$custom-light: #7f8dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3961bd",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 189
  },
  "hsl": {
    "h": 221.818,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51371,
    "c": 0.15169,
    "h": 264.1
  },
  "luminance": 0.13093
}

Semantic roles & 50–950 ramp

primary

#3961BD

secondary

#C9B689

accent

#B14BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3961BD

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

Preview Lab → · Contrast checker → · Palette generator →