#3961BA#3961BA

#3961BA is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.2% C 0.148 H 263.8°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#3961BA
RGB	rgb(57, 97, 186)
HSL	hsl(221, 53%, 48%)
HSV	hsv(221, 69%, 73%)
CMYK	cmyk(69.4%, 47.8%, 0%, 27.1%)
CIE-LAB	lab(42.71, 16.08, -51.17)
CIE-LCH	lch(42.71, 53.64, 287.44°)
OKLab	oklab(51.16% -0.016 -0.1467)
OKLCH	oklch(51.16% 0.148 263.8)
XYZ	xyz(14.8218, 12.9629, 48.1658)
Luminance	0.1296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961BA #BA9239

analogous

#39A2BA #3961BA #5139BA

triadic

#3961BA #BA3961 #61BA39

tetradic

#3961BA #BA39A2 #BA9239 #39BA51

square

#3961BA #BA39A2 #BA9239 #39BA51

split-complementary

#3961BA #BA5139 #A2BA39

monochromatic

#1C305C #2B498B #3961BA #6183CF #90A8DD

Accessibility & contrast

On white

5.85

#3961BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#3961BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961BA

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961BA	#FFFFFF	#000000	##FFFFFF
##3961BA	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326BBD

Deuteranopia (green-blind)

#125FB8

Tritanopia (blue-blind)

#007684

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3961ba;
/* rgb */ color: rgb(57, 97, 186);
/* oklch */ color: oklch(51.2% 0.148 263.8);

Tailwind

colors: {
  custom: {
    50: '#7e8dcf',
    500: '#3961ba',
    950: '#000000',
  },
}

SCSS

$custom: #3961ba;
$custom-light: #7e8dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3961ba",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 186
  },
  "hsl": {
    "h": 221.395,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.5116,
    "c": 0.14754,
    "h": 263.8
  },
  "luminance": 0.12964
}

Semantic roles & 50–950 ramp

primary

#3961BA

secondary

#C8B487

accent

#AF4BDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3961BA

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

Preview Lab → · Contrast checker → · Palette generator →