#3959BB#3959BB

#3959BB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.6% C 0.159 H 266.9°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#3959BB
RGB	rgb(57, 89, 187)
HSL	hsl(225, 53%, 48%)
HSV	hsv(225, 70%, 73%)
CMYK	cmyk(69.5%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(40.57, 21.62, -55.19)
CIE-LCH	lch(40.57, 59.27, 291.39°)
OKLab	oklab(49.56% -0.0087 -0.1586)
OKLCH	oklch(49.56% 0.159 266.9)
XYZ	xyz(14.2262, 11.6010, 48.4936)
Luminance	0.1160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959BB #BB9B39

analogous

#399ABB #3959BB #5A39BB

triadic

#3959BB #BB3959 #59BB39

tetradic

#3959BB #BB399A #BB9B39 #39BB5A

square

#3959BB #BB399A #BB9B39 #39BB5A

split-complementary

#3959BB #BB5A39 #9ABB39

monochromatic

#1C2C5D #2B438C #3959BB #627DCF #91A4DD

Accessibility & contrast

On white

6.32

#3959BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3959BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959BB

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959BB	#FFFFFF	#000000	##FFFFFF
##3959BB	1.00	6.32	3.32	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1966BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3959bb;
/* rgb */ color: rgb(57, 89, 187);
/* oklch */ color: oklch(49.6% 0.159 266.9);

Tailwind

colors: {
  custom: {
    50: '#7f87d0',
    500: '#3959bb',
    950: '#000000',
  },
}

SCSS

$custom: #3959bb;
$custom-light: #7f87d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3959bb",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 225.231,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49558,
    "c": 0.15887,
    "h": 266.9
  },
  "luminance": 0.11602
}

Semantic roles & 50–950 ramp

primary

#3959BB

secondary

#C8B887

accent

#B94BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3959BB

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

Preview Lab → · Contrast checker → · Palette generator →