#3F338A#3F338A

#3F338A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.7% C 0.139 H 284.1°. Best body text is #FFFFFF at 10.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F338A
RGB	rgb(63, 51, 138)
HSL	hsl(248, 46%, 37%)
HSV	hsv(248, 63%, 54%)
CMYK	cmyk(54.3%, 63%, 0%, 45.9%)
CIE-LAB	lab(27.46, 30.14, -46.95)
CIE-LCH	lch(27.46, 55.79, 302.69°)
OKLab	oklab(38.73% 0.0339 -0.1346)
OKLCH	oklch(38.73% 0.139 284.1)
XYZ	xyz(7.8198, 5.2590, 24.6429)
Luminance	0.0526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F338A #7E8A33

analogous

#33538A #3F338A #6B338A

triadic

#3F338A #8A3F33 #338A3F

tetradic

#3F338A #8A3353 #7E8A33 #338A6B

square

#3F338A #8A3353 #7E8A33 #338A6B

split-complementary

#3F338A #8A6B33 #538A33

monochromatic

#161231 #2B225D #3F338A #5344B7 #7B6EC9

Accessibility & contrast

On white

10.23

#3F338A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#3F338A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F338A

10.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F338A	#FFFFFF	#000000	##FFFFFF
##3F338A	1.00	10.23	2.05	10.23
#FFFFFF	10.23	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438D

Deuteranopia (green-blind)

#003E88

Tritanopia (blue-blind)

#204859

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f338a;
/* rgb */ color: rgb(63, 51, 138);
/* oklch */ color: oklch(38.7% 0.139 284.1);

Tailwind

colors: {
  custom: {
    50: '#7b6bad',
    500: '#3f338a',
    950: '#000000',
  },
}

SCSS

$custom: #3f338a;
$custom-light: #7b6bad;
$custom-dark: #000000;

JSON

{
  "hex": "#3f338a",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 138
  },
  "hsl": {
    "h": 248.276,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.38725,
    "c": 0.13882,
    "h": 284.1
  },
  "luminance": 0.05259
}

Semantic roles & 50–950 ramp

primary

#3F338A

secondary

#A7B167

accent

#D652C4

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0610

muted

#7C7A7F

Preview Lab

Preview with #3F338A

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

Preview Lab → · Contrast checker → · Palette generator →