#3961CC#3961CC

#3961CC is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.5% C 0.172 H 265.4°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3961CC
RGB	rgb(57, 97, 204)
HSL	hsl(224, 59%, 51%)
HSV	hsv(224, 72%, 80%)
CMYK	cmyk(72.1%, 52.5%, 0%, 20%)
CIE-LAB	lab(43.91, 22.68, -59.65)
CIE-LCH	lch(43.91, 63.82, 290.82°)
OKLab	oklab(52.46% -0.0139 -0.1716)
OKLCH	oklch(52.46% 0.172 265.4)
XYZ	xyz(16.8573, 13.7771, 58.8859)
Luminance	0.1378 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961CC #CCA439

analogous

#39ABCC #3961CC #5A39CC

triadic

#3961CC #CC3961 #61CC39

tetradic

#3961CC #CC39AB #CCA439 #39CC5A

square

#3961CC #CC39AB #CCA439 #39CC5A

split-complementary

#3961CC #CC5A39 #ABCC39

monochromatic

#1C336E #29499F #3961CC #6A88D9 #9AAFE5

Accessibility & contrast

On white

5.59

#3961CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#3961CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961CC

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961CC	#FFFFFF	#000000	##FFFFFF
##3961CC	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#176FD0

Deuteranopia (green-blind)

#0061CA

Tritanopia (blue-blind)

#007B8D

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3961cc;
/* rgb */ color: rgb(57, 97, 204);
/* oklch */ color: oklch(52.5% 0.172 265.4);

Tailwind

colors: {
  custom: {
    50: '#828ddc',
    500: '#3961cc',
    950: '#000000',
  },
}

SCSS

$custom: #3961cc;
$custom-light: #828ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#3961cc",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 204
  },
  "hsl": {
    "h": 223.673,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.52462,
    "c": 0.17219,
    "h": 265.4
  },
  "luminance": 0.13779
}

Semantic roles & 50–950 ramp

primary

#3961CC

secondary

#D1BF90

accent

#B846E2

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3961CC

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

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