#3961CD#3961CD

#3961CD is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.5% C 0.174 H 265.5°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#3961CD
RGB	rgb(57, 97, 205)
HSL	hsl(224, 60%, 51%)
HSV	hsv(224, 72%, 80%)
CMYK	cmyk(72.2%, 52.7%, 0%, 19.6%)
CIE-LAB	lab(43.98, 23.05, -60.11)
CIE-LCH	lch(43.98, 64.38, 290.98°)
OKLab	oklab(52.54% -0.0138 -0.173)
OKLCH	oklch(52.54% 0.174 265.5)
XYZ	xyz(16.9776, 13.8252, 59.5196)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961CD #CDA539

analogous

#39ABCD #3961CD #5B39CD

triadic

#3961CD #CD3961 #61CD39

tetradic

#3961CD #CD39AB #CDA539 #39CD5B

square

#3961CD #CD39AB #CDA539 #39CD5B

split-complementary

#3961CD #CD5B39 #ABCD39

monochromatic

#1C336F #2849A0 #3961CD #6A88D9 #9BAFE6

Accessibility & contrast

On white

5.58

#3961CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3961CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961CD

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961CD	#FFFFFF	#000000	##FFFFFF
##3961CD	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#146FD1

Deuteranopia (green-blind)

#0061CB

Tritanopia (blue-blind)

#007B8D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3961cd;
/* rgb */ color: rgb(57, 97, 205);
/* oklch */ color: oklch(52.5% 0.174 265.5);

Tailwind

colors: {
  custom: {
    50: '#828ddd',
    500: '#3961cd',
    950: '#000000',
  },
}

SCSS

$custom: #3961cd;
$custom-light: #828ddd;
$custom-dark: #000000;

JSON

{
  "hex": "#3961cd",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 205
  },
  "hsl": {
    "h": 223.784,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.52537,
    "c": 0.17354,
    "h": 265.5
  },
  "luminance": 0.13827
}

Semantic roles & 50–950 ramp

primary

#3961CD

secondary

#D2C090

accent

#B845E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3961CD

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

Preview Lab → · Contrast checker → · Palette generator →