#3959BC#3959BC

#3959BC is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.6% C 0.160 H 266.9°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#3959BC
RGB	rgb(57, 89, 188)
HSL	hsl(225, 53%, 48%)
HSV	hsv(225, 70%, 74%)
CMYK	cmyk(69.7%, 52.7%, 0%, 26.3%)
CIE-LAB	lab(40.64, 21.98, -55.66)
CIE-LCH	lch(40.64, 59.85, 291.55°)
OKLab	oklab(49.63% -0.0086 -0.16)
OKLCH	oklch(49.63% 0.16 266.9)
XYZ	xyz(14.3337, 11.6440, 49.0593)
Luminance	0.1164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959BC #BC9C39

analogous

#399ABC #3959BC #5B39BC

triadic

#3959BC #BC3959 #59BC39

tetradic

#3959BC #BC399A #BC9C39 #39BC5B

square

#3959BC #BC399A #BC9C39 #39BC5B

split-complementary

#3959BC #BC5B39 #9ABC39

monochromatic

#1D2D5E #2B438D #3959BC #637DD0 #92A4DE

Accessibility & contrast

On white

6.31

#3959BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3959BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959BC

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959BC	#FFFFFF	#000000	##FFFFFF
##3959BC	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1766C0

Deuteranopia (green-blind)

#005ABA

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3959bc;
/* rgb */ color: rgb(57, 89, 188);
/* oklch */ color: oklch(49.6% 0.160 266.9);

Tailwind

colors: {
  custom: {
    50: '#7f87d1',
    500: '#3959bc',
    950: '#000000',
  },
}

SCSS

$custom: #3959bc;
$custom-light: #7f87d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3959bc",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 188
  },
  "hsl": {
    "h": 225.344,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.49633,
    "c": 0.16025,
    "h": 266.9
  },
  "luminance": 0.11645
}

Semantic roles & 50–950 ramp

primary

#3959BC

secondary

#C9B988

accent

#B94BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3959BC

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

Preview Lab → · Contrast checker → · Palette generator →