#3F38C5#3F38C5

#3F38C5 is a dark, highly saturated blue. Relative luminance 0.079; OKLCH L 44.9% C 0.209 H 276.0°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F38C5
RGB	rgb(63, 56, 197)
HSL	hsl(243, 56%, 50%)
HSV	hsv(243, 72%, 77%)
CMYK	cmyk(68%, 71.6%, 0%, 22.7%)
CIE-LAB	lab(33.81, 46.45, -72.07)
CIE-LCH	lch(33.81, 85.74, 302.80°)
OKLab	oklab(44.92% 0.0221 -0.2082)
OKLCH	oklch(44.92% 0.209 276)
XYZ	xyz(13.5388, 7.9151, 53.6268)
Luminance	0.0792 (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

#3F38C5 #BEC538

analogous

#3877C5 #3F38C5 #8638C5

triadic

#3F38C5 #C53F38 #38C53F

tetradic

#3F38C5 #C53877 #BEC538 #38C586

square

#3F38C5 #C53877 #BEC538 #38C586

split-complementary

#3F38C5 #C58638 #77C538

monochromatic

#211D66 #302A95 #3F38C5 #6C67D4 #9A96E1

Accessibility & contrast

On white

8.13

#3F38C5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3F38C5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38C5

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38C5	#FFFFFF	#000000	##FFFFFF
##3F38C5	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C9

Deuteranopia (green-blind)

#0049C2

Tritanopia (blue-blind)

#005F7B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f38c5;
/* rgb */ color: rgb(63, 56, 197);
/* oklch */ color: oklch(44.9% 0.209 276.0);

Tailwind

colors: {
  custom: {
    50: '#8670d8',
    500: '#3f38c5',
    950: '#000000',
  },
}

SCSS

$custom: #3f38c5;
$custom-light: #8670d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38c5",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 197
  },
  "hsl": {
    "h": 242.979,
    "s": 55.731,
    "l": 49.608
  },
  "oklch": {
    "l": 0.44916,
    "c": 0.20942,
    "h": 276
  },
  "luminance": 0.07916
}

Semantic roles & 50–950 ramp

primary

#3F38C5

secondary

#C9CD8C

accent

#DF49D8

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3F38C5

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

Preview Lab → · Contrast checker → · Palette generator →