#3961BF#3961BF

#3961BF is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.5% C 0.154 H 264.3°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3961BF
RGB	rgb(57, 97, 191)
HSL	hsl(222, 54%, 49%)
HSV	hsv(222, 70%, 75%)
CMYK	cmyk(70.2%, 49.2%, 0%, 25.1%)
CIE-LAB	lab(43.03, 17.91, -53.56)
CIE-LCH	lch(43.03, 56.47, 288.49°)
OKLab	oklab(51.51% -0.0153 -0.1537)
OKLCH	oklch(51.51% 0.154 264.3)
XYZ	xyz(15.3627, 13.1793, 51.0143)
Luminance	0.1318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961BF #BF9739

analogous

#39A4BF #3961BF #5439BF

triadic

#3961BF #BF3961 #61BF39

tetradic

#3961BF #BF39A4 #BF9739 #39BF54

square

#3961BF #BF39A4 #BF9739 #39BF54

split-complementary

#3961BF #BF5439 #A4BF39

monochromatic

#1D3161 #2B4990 #3961BF #6485D1 #93AADF

Accessibility & contrast

On white

5.78

#3961BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#3961BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961BF

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961BF	#FFFFFF	#000000	##FFFFFF
##3961BF	1.00	5.78	3.64	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6CC2

Deuteranopia (green-blind)

#0060BD

Tritanopia (blue-blind)

#007787

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3961bf;
/* rgb */ color: rgb(57, 97, 191);
/* oklch */ color: oklch(51.5% 0.154 264.3);

Tailwind

colors: {
  custom: {
    50: '#7f8dd3',
    500: '#3961bf',
    950: '#000000',
  },
}

SCSS

$custom: #3961bf;
$custom-light: #7f8dd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3961bf",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 191
  },
  "hsl": {
    "h": 222.09,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.51513,
    "c": 0.15445,
    "h": 264.3
  },
  "luminance": 0.13181
}

Semantic roles & 50–950 ramp

primary

#3961BF

secondary

#CAB78A

accent

#B24ADD

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3961BF

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

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