#3961B2#3961B2

#3961B2 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.6% C 0.136 H 262.7°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3961B2
RGB	rgb(57, 97, 178)
HSL	hsl(220, 51%, 46%)
HSV	hsv(220, 68%, 70%)
CMYK	cmyk(68%, 45.5%, 0%, 30.2%)
CIE-LAB	lab(42.20, 13.15, -47.30)
CIE-LCH	lch(42.20, 49.09, 285.54°)
OKLab	oklab(50.61% -0.0173 -0.1353)
OKLCH	oklch(50.61% 0.136 262.7)
XYZ	xyz(13.9951, 12.6322, 43.8116)
Luminance	0.1263 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3961B2 #B28A39

analogous

#399DB2 #3961B2 #4D39B2

triadic

#3961B2 #B23961 #61B239

tetradic

#3961B2 #B2399D #B28A39 #39B24D

square

#3961B2 #B2399D #B28A39 #39B24D

split-complementary

#3961B2 #B24D39 #9DB239

monochromatic

#1B2E55 #2A4884 #3961B2 #5D81CB #8BA5DA

Accessibility & contrast

On white

5.95

#3961B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3961B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3961B2

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3961B2	#FFFFFF	#000000	##FFFFFF
##3961B2	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396AB5

Deuteranopia (green-blind)

#235EB0

Tritanopia (blue-blind)

#007481

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3961b2;
/* rgb */ color: rgb(57, 97, 178);
/* oklch */ color: oklch(50.6% 0.136 262.7);

Tailwind

colors: {
  custom: {
    50: '#7d8dc9',
    500: '#3961b2',
    950: '#000000',
  },
}

SCSS

$custom: #3961b2;
$custom-light: #7d8dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3961b2",
  "rgb": {
    "r": 57,
    "g": 97,
    "b": 178
  },
  "hsl": {
    "h": 220.165,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.50612,
    "c": 0.13639,
    "h": 262.7
  },
  "luminance": 0.12634
}

Semantic roles & 50–950 ramp

primary

#3961B2

secondary

#C4AF82

accent

#AC4DDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3961B2

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

Preview Lab → · Contrast checker → · Palette generator →