#3959D3#3959D3

#3959D3 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.4% C 0.191 H 267.8°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3959D3
RGB	rgb(57, 89, 211)
HSL	hsl(228, 64%, 53%)
HSV	hsv(228, 73%, 83%)
CMYK	cmyk(73%, 57.8%, 0%, 17.3%)
CIE-LAB	lab(42.33, 30.36, -66.24)
CIE-LCH	lch(42.33, 72.86, 294.62°)
OKLab	oklab(51.43% -0.0073 -0.1911)
OKLCH	oklch(51.43% 0.191 267.8)
XYZ	xyz(17.0135, 12.7160, 63.1732)
Luminance	0.1272 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959D3 #D3B339

analogous

#39A6D3 #3959D3 #6639D3

triadic

#3959D3 #D33959 #59D339

tetradic

#3959D3 #D339A6 #D3B339 #39D366

square

#3959D3 #D339A6 #D3B339 #39D366

split-complementary

#3959D3 #D36639 #A6D339

monochromatic

#1A2E77 #2641A9 #3959D3 #6B83DE #9DADE9

Accessibility & contrast

On white

5.93

#3959D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3959D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959D3

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959D3	#FFFFFF	#000000	##FFFFFF
##3959D3	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BD7

Deuteranopia (green-blind)

#005DD1

Tritanopia (blue-blind)

#00778D

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3959d3;
/* rgb */ color: rgb(57, 89, 211);
/* oklch */ color: oklch(51.4% 0.191 267.8);

Tailwind

colors: {
  custom: {
    50: '#8487e1',
    500: '#3959d3',
    950: '#000000',
  },
}

SCSS

$custom: #3959d3;
$custom-light: #8487e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3959d3",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 211
  },
  "hsl": {
    "h": 227.532,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.51434,
    "c": 0.19125,
    "h": 267.8
  },
  "luminance": 0.12718
}

Semantic roles & 50–950 ramp

primary

#3959D3

secondary

#D5C792

accent

#C441E7

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3959D3

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

Preview Lab → · Contrast checker → · Palette generator →