#3F3AB2#3F3AB2

#3F3AB2 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.183 H 277.4°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#3F3AB2
RGB	rgb(63, 58, 178)
HSL	hsl(243, 51%, 46%)
HSV	hsv(243, 67%, 70%)
CMYK	cmyk(64.6%, 67.4%, 0%, 30.2%)
CIE-LAB	lab(32.47, 39.06, -63.06)
CIE-LCH	lch(32.47, 74.17, 301.77°)
OKLab	oklab(43.42% 0.0235 -0.1819)
OKLCH	oklch(43.42% 0.183 277.4)
XYZ	xyz(11.5962, 7.2963, 42.9081)
Luminance	0.0730 (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

#3F3AB2 #ADB23A

analogous

#3A71B2 #3F3AB2 #7B3AB2

triadic

#3F3AB2 #B23F3A #3AB23F

tetradic

#3F3AB2 #B23A71 #ADB23A #3AB27B

square

#3F3AB2 #B23A71 #ADB23A #3AB27B

split-complementary

#3F3AB2 #B27B3A #71B23A

monochromatic

#1E1C56 #2F2B84 #3F3AB2 #635FCB #908DDA

Accessibility & contrast

On white

8.54

#3F3AB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3F3AB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3AB2

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3AB2	#FFFFFF	#000000	##FFFFFF
##3F3AB2	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f3ab2;
/* rgb */ color: rgb(63, 58, 178);
/* oklch */ color: oklch(43.4% 0.183 277.4);

Tailwind

colors: {
  custom: {
    50: '#8271ca',
    500: '#3f3ab2',
    950: '#000000',
  },
}

SCSS

$custom: #3f3ab2;
$custom-light: #8271ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3ab2",
  "rgb": {
    "r": 63,
    "g": 58,
    "b": 178
  },
  "hsl": {
    "h": 242.5,
    "s": 50.847,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43423,
    "c": 0.18341,
    "h": 277.4
  },
  "luminance": 0.07297
}

Semantic roles & 50–950 ramp

primary

#3F3AB2

secondary

#C2C483

accent

#DA4DD4

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #3F3AB2

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

Preview Lab → · Contrast checker → · Palette generator →