#3F338D#3F338D

#3F338D is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.0% C 0.143 H 283.6°. Best body text is #FFFFFF at 10.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F338D
RGB	rgb(63, 51, 141)
HSL	hsl(248, 47%, 38%)
HSV	hsv(248, 64%, 55%)
CMYK	cmyk(55.3%, 63.8%, 0%, 44.7%)
CIE-LAB	lab(27.70, 31.12, -48.42)
CIE-LCH	lch(27.70, 57.56, 302.73°)
OKLab	oklab(38.98% 0.0337 -0.1389)
OKLCH	oklch(38.98% 0.143 283.6)
XYZ	xyz(8.0400, 5.3470, 25.8026)
Luminance	0.0535 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F338D #818D33

analogous

#33548D #3F338D #6C338D

triadic

#3F338D #8D3F33 #338D3F

tetradic

#3F338D #8D3354 #818D33 #338D6C

square

#3F338D #8D3354 #818D33 #338D6C

split-complementary

#3F338D #8D6C33 #548D33

monochromatic

#171233 #2B2360 #3F338D #5343BA #7C6FCB

Accessibility & contrast

On white

10.15

#3F338D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#3F338D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F338D

10.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F338D	#FFFFFF	#000000	##FFFFFF
##3F338D	1.00	10.15	2.07	10.15
#FFFFFF	10.15	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#003E8B

Tritanopia (blue-blind)

#1D495B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f338d;
/* rgb */ color: rgb(63, 51, 141);
/* oklch */ color: oklch(39.0% 0.143 283.6);

Tailwind

colors: {
  custom: {
    50: '#7c6baf',
    500: '#3f338d',
    950: '#000000',
  },
}

SCSS

$custom: #3f338d;
$custom-light: #7c6baf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f338d",
  "rgb": {
    "r": 63,
    "g": 51,
    "b": 141
  },
  "hsl": {
    "h": 248,
    "s": 46.875,
    "l": 37.647
  },
  "oklch": {
    "l": 0.38977,
    "c": 0.14296,
    "h": 283.6
  },
  "luminance": 0.05348
}

Semantic roles & 50–950 ramp

primary

#3F338D

secondary

#A9B369

accent

#D751C5

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3F338D

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

Preview Lab → · Contrast checker → · Palette generator →