#3F3EB3#3F3EB3

#3F3EB3 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.2% C 0.180 H 276.5°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F3EB3
RGB	rgb(63, 62, 179)
HSL	hsl(241, 49%, 47%)
HSV	hsv(241, 65%, 70%)
CMYK	cmyk(64.8%, 65.4%, 0%, 29.8%)
CIE-LAB	lab(33.47, 36.95, -62.02)
CIE-LCH	lch(33.47, 72.19, 300.79°)
OKLab	oklab(44.17% 0.0203 -0.1788)
OKLCH	oklch(44.17% 0.18 276.5)
XYZ	xyz(11.9066, 7.7557, 43.5086)
Luminance	0.0776 (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

#3F3EB3 #B2B33E

analogous

#3E77B3 #3F3EB3 #7A3EB3

triadic

#3F3EB3 #B33F3E #3EB33F

tetradic

#3F3EB3 #B33E77 #B2B33E #3EB37A

square

#3F3EB3 #B33E77 #B2B33E #3EB37A

split-complementary

#3F3EB3 #B37A3E #77B33E

monochromatic

#1F1F58 #2F2E86 #3F3EB3 #6665CA #9392D9

Accessibility & contrast

On white

8.23

#3F3EB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3F3EB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3EB3

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3EB3	#FFFFFF	#000000	##FFFFFF
##3F3EB3	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f3eb3;
/* rgb */ color: rgb(63, 62, 179);
/* oklch */ color: oklch(44.2% 0.180 276.5);

Tailwind

colors: {
  custom: {
    50: '#8274cb',
    500: '#3f3eb3',
    950: '#000000',
  },
}

SCSS

$custom: #3f3eb3;
$custom-light: #8274cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3eb3",
  "rgb": {
    "r": 63,
    "g": 62,
    "b": 179
  },
  "hsl": {
    "h": 240.513,
    "s": 48.548,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44173,
    "c": 0.17999,
    "h": 276.5
  },
  "luminance": 0.07757
}

Semantic roles & 50–950 ramp

primary

#3F3EB3

secondary

#C4C588

accent

#D850D7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3EB3

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

Preview Lab → · Contrast checker → · Palette generator →