#3961E9#3961E9

#3961E9 is a mid, highly saturated blue. Relative luminance 0.153; OKLCH L 54.7% C 0.210 H 266.7°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3961E9
RGB	rgb(57, 97, 233)
HSL	hsl(226, 80%, 57%)
HSV	hsv(226, 76%, 91%)
CMYK	cmyk(75.5%, 58.4%, 0%, 8.6%)
CIE-LAB	lab(46.04, 33.23, -72.70)
CIE-LCH	lch(46.04, 79.93, 294.56°)
OKLab	oklab(54.74% -0.0122 -0.21)
OKLCH	oklch(54.74% 0.21 266.7)
XYZ	xyz(20.6649, 15.3001, 78.9391)
Luminance	0.1530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961E9 #E9C139

analogous

#39B9E9 #3961E9 #6939E9

triadic

#3961E9 #E93961 #61E939

tetradic

#3961E9 #E939B9 #E9C139 #39E969

square

#3961E9 #E939B9 #E9C139 #39E969

split-complementary

#3961E9 #E96939 #B9E939

monochromatic

#112F97 #1740CE #3961E9 #708DEF #A7B9F5

Accessibility & contrast

On white

5.17

#3961E9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#3961E9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961E9

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961E9	#FFFFFF	#000000	##FFFFFF
##3961E9	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075EE

Deuteranopia (green-blind)

#0065E6

Tritanopia (blue-blind)

#00839C

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3961e9;
/* rgb */ color: rgb(57, 97, 233);
/* oklch */ color: oklch(54.7% 0.210 266.7);

Tailwind

colors: {
  custom: {
    50: '#888df1',
    500: '#3961e9',
    950: '#000000',
  },
}

SCSS

$custom: #3961e9;
$custom-light: #888df1;
$custom-dark: #000000;

JSON

{
  "hex": "#3961e9",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 233
  },
  "hsl": {
    "h": 226.364,
    "s": 80,
    "l": 56.863
  },
  "oklch": {
    "l": 0.54735,
    "c": 0.21034,
    "h": 266.7
  },
  "luminance": 0.15302
}

Semantic roles & 50–950 ramp

primary

#3961E9

secondary

#E3D29B

accent

#CA31F6

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0D0C17

muted

#7E7D85

Preview Lab

Preview with #3961E9

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

Preview Lab → · Contrast checker → · Palette generator →