#3939C1#3939C1

#3939C1 is a dark, highly saturated blue. Relative luminance 0.076; OKLCH L 44.3% C 0.205 H 274.1°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#3939C1
RGB	rgb(57, 57, 193)
HSL	hsl(240, 54%, 49%)
HSV	hsv(240, 70%, 76%)
CMYK	cmyk(70.5%, 70.5%, 0%, 24.3%)
CIE-LAB	lab(33.23, 43.90, -70.69)
CIE-LCH	lch(33.23, 83.21, 301.84°)
OKLab	oklab(44.29% 0.0148 -0.2044)
OKLCH	oklch(44.29% 0.205 274.1)
XYZ	xyz(12.7729, 7.6451, 51.2443)
Luminance	0.0765 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3939C1 #C1C139

analogous

#397DC1 #3939C1 #7D39C1

triadic

#3939C1 #C13939 #39C139

tetradic

#3939C1 #C1397D #C1C139 #39C17D

square

#3939C1 #C1397D #C1C139 #39C17D

split-complementary

#3939C1 #C17D39 #7DC139

monochromatic

#1D1D63 #2B2B92 #3939C1 #6666D2 #9595E0

Accessibility & contrast

On white

8.30

#3939C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3939C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3939C1

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3939C1	#FFFFFF	#000000	##FFFFFF
##3939C1	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C5

Deuteranopia (green-blind)

#0048BF

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3939c1;
/* rgb */ color: rgb(57, 57, 193);
/* oklch */ color: oklch(44.3% 0.205 274.1);

Tailwind

colors: {
  custom: {
    50: '#8370d5',
    500: '#3939c1',
    950: '#000000',
  },
}

SCSS

$custom: #3939c1;
$custom-light: #8370d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3939c1",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 193
  },
  "hsl": {
    "h": 240,
    "s": 54.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44286,
    "c": 0.20489,
    "h": 274.1
  },
  "luminance": 0.07646
}

Semantic roles & 50–950 ramp

primary

#3939C1

secondary

#CBCB8B

accent

#DE4ADE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3939C1

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

Preview Lab → · Contrast checker → · Palette generator →