#3F338C#3F338C

#3F338C is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.9% C 0.142 H 283.8°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F338C
RGB	rgb(63, 51, 140)
HSL	hsl(248, 47%, 37%)
HSV	hsv(248, 64%, 55%)
CMYK	cmyk(55%, 63.6%, 0%, 45.1%)
CIE-LAB	lab(27.62, 30.79, -47.93)
CIE-LCH	lch(27.62, 56.97, 302.72°)
OKLab	oklab(38.89% 0.0337 -0.1375)
OKLCH	oklch(38.89% 0.142 283.8)
XYZ	xyz(7.9659, 5.3174, 25.4125)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F338C #808C33

analogous

#33538C #3F338C #6C338C

triadic

#3F338C #8C3F33 #338C3F

tetradic

#3F338C #8C3353 #808C33 #338C6C

square

#3F338C #8C3353 #808C33 #338C6C

split-complementary

#3F338C #8C6C33 #538C33

monochromatic

#171232 #2B235F #3F338C #5343B9 #7B6FCB

Accessibility & contrast

On white

10.18

#3F338C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3F338C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F338C

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F338C	#FFFFFF	#000000	##FFFFFF
##3F338C	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448F

Deuteranopia (green-blind)

#003E8A

Tritanopia (blue-blind)

#1E485A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f338c;
/* rgb */ color: rgb(63, 51, 140);
/* oklch */ color: oklch(38.9% 0.142 283.8);

Tailwind

colors: {
  custom: {
    50: '#7c6bae',
    500: '#3f338c',
    950: '#000000',
  },
}

SCSS

$custom: #3f338c;
$custom-light: #7c6bae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f338c",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 140
  },
  "hsl": {
    "h": 248.09,
    "s": 46.597,
    "l": 37.451
  },
  "oklch": {
    "l": 0.38893,
    "c": 0.14159,
    "h": 283.8
  },
  "luminance": 0.05318
}

Semantic roles & 50–950 ramp

primary

#3F338C

secondary

#A8B268

accent

#D652C4

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3F338C

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

Preview Lab → · Contrast checker → · Palette generator →