#3959C7#3959C7

#3959C7 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.5% C 0.175 H 267.4°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3959C7
RGB	rgb(57, 89, 199)
HSL	hsl(226, 56%, 50%)
HSV	hsv(226, 71%, 78%)
CMYK	cmyk(71.4%, 55.3%, 0%, 22%)
CIE-LAB	lab(41.43, 26.00, -60.78)
CIE-LCH	lch(41.43, 66.11, 293.16°)
OKLab	oklab(50.48% -0.0078 -0.1751)
OKLCH	oklch(50.48% 0.175 267.4)
XYZ	xyz(15.5649, 12.1365, 55.5440)
Luminance	0.1214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959C7 #C7A739

analogous

#39A0C7 #3959C7 #6039C7

triadic

#3959C7 #C73959 #59C739

tetradic

#3959C7 #C739A0 #C7A739 #39C760

square

#3959C7 #C739A0 #C7A739 #39C760

split-complementary

#3959C7 #C76039 #A0C739

monochromatic

#1D2E68 #2B4398 #3959C7 #6981D4 #98A9E2

Accessibility & contrast

On white

6.13

#3959C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3959C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959C7

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959C7	#FFFFFF	#000000	##FFFFFF
##3959C7	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CB

Deuteranopia (green-blind)

#005BC5

Tritanopia (blue-blind)

#007487

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3959c7;
/* rgb */ color: rgb(57, 89, 199);
/* oklch */ color: oklch(50.5% 0.175 267.4);

Tailwind

colors: {
  custom: {
    50: '#8187d9',
    500: '#3959c7',
    950: '#000000',
  },
}

SCSS

$custom: #3959c7;
$custom-light: #8187d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3959c7",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 199
  },
  "hsl": {
    "h": 226.479,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50477,
    "c": 0.17525,
    "h": 267.4
  },
  "luminance": 0.12138
}

Semantic roles & 50–950 ramp

primary

#3959C7

secondary

#CEBF8E

accent

#BD49DF

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3959C7

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

Preview Lab → · Contrast checker → · Palette generator →