#3961DA#3961DA

#3961DA is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.5% C 0.191 H 266.1°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3961DA
RGB	rgb(57, 97, 218)
HSL	hsl(225, 69%, 54%)
HSV	hsv(225, 74%, 85%)
CMYK	cmyk(73.9%, 55.5%, 0%, 14.5%)
CIE-LAB	lab(44.91, 27.80, -66.04)
CIE-LCH	lch(44.91, 71.65, 292.83°)
OKLab	oklab(53.53% -0.0128 -0.1904)
OKLCH	oklch(53.53% 0.191 266.1)
XYZ	xyz(18.6125, 14.4792, 68.1299)
Luminance	0.1448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961DA #DAB239

analogous

#39B2DA #3961DA #6239DA

triadic

#3961DA #DA3961 #61DA39

tetradic

#3961DA #DA39B2 #DAB239 #39DA62

square

#3961DA #DA39B2 #DAB239 #39DA62

split-complementary

#3961DA #DA6239 #B2DA39

monochromatic

#183281 #2246B4 #3961DA #6D8AE4 #A0B3ED

Accessibility & contrast

On white

5.39

#3961DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#3961DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961DA

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961DA	#FFFFFF	#000000	##FFFFFF
##3961DA	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072DE

Deuteranopia (green-blind)

#0063D8

Tritanopia (blue-blind)

#007F94

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3961da;
/* rgb */ color: rgb(57, 97, 218);
/* oklch */ color: oklch(53.5% 0.191 266.1);

Tailwind

colors: {
  custom: {
    50: '#858de6',
    500: '#3961da',
    950: '#000000',
  },
}

SCSS

$custom: #3961da;
$custom-light: #858de6;
$custom-dark: #000000;

JSON

{
  "hex": "#3961da",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 218
  },
  "hsl": {
    "h": 225.093,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.53534,
    "c": 0.19085,
    "h": 266.1
  },
  "luminance": 0.14481
}

Semantic roles & 50–950 ramp

primary

#3961DA

secondary

#DAC995

accent

#C03CEB

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0D0C16

muted

#7D7D84

Preview Lab

Preview with #3961DA

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

Preview Lab → · Contrast checker → · Palette generator →