#3F3DA5#3F3DA5

#3F3DA5 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.163 H 277.9°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F3DA5
RGB	rgb(63, 61, 165)
HSL	hsl(241, 46%, 44%)
HSV	hsv(241, 63%, 65%)
CMYK	cmyk(61.8%, 63%, 0%, 35.3%)
CIE-LAB	lab(32.06, 32.83, -55.96)
CIE-LCH	lch(32.06, 64.88, 300.40°)
OKLab	oklab(42.78% 0.0222 -0.1611)
OKLCH	oklch(42.78% 0.163 277.9)
XYZ	xyz(10.5080, 7.1101, 36.4087)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.68

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3DA5 #A3A53D

analogous

#3D6FA5 #3F3DA5 #733DA5

triadic

#3F3DA5 #A53F3D #3DA53F

tetradic

#3F3DA5 #A53D6F #A3A53D #3DA573

square

#3F3DA5 #A53D6F #A3A53D #3DA573

split-complementary

#3F3DA5 #A5733D #6FA53D

monochromatic

#1D1C4C #2E2C78 #3F3DA5 #5E5CC3 #8A89D3

Accessibility & contrast

On white

8.67

#3F3DA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3F3DA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3DA5

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3DA5	#FFFFFF	#000000	##FFFFFF
##3F3DA5	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0047A3

Tritanopia (blue-blind)

#00576B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f3da5;
/* rgb */ color: rgb(63, 61, 165);
/* oklch */ color: oklch(42.8% 0.163 277.9);

Tailwind

colors: {
  custom: {
    50: '#7f73c1',
    500: '#3f3da5',
    950: '#000000',
  },
}

SCSS

$custom: #3f3da5;
$custom-light: #7f73c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3da5",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 165
  },
  "hsl": {
    "h": 241.154,
    "s": 46.018,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42776,
    "c": 0.16259,
    "h": 277.9
  },
  "luminance": 0.07111
}

Semantic roles & 50–950 ramp

primary

#3F3DA5

secondary

#BDBE80

accent

#D652D3

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3F3DA5

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

Preview Lab → · Contrast checker → · Palette generator →