#3F38C0#3F38C0

#3F38C0 is a dark, highly saturated blue. Relative luminance 0.077; OKLCH L 44.4% C 0.203 H 276.5°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#3F38C0
RGB	rgb(63, 56, 192)
HSL	hsl(243, 55%, 49%)
HSV	hsv(243, 71%, 75%)
CMYK	cmyk(67.2%, 70.8%, 0%, 24.7%)
CIE-LAB	lab(33.33, 44.83, -69.93)
CIE-LCH	lch(33.33, 83.06, 302.66°)
OKLab	oklab(44.43% 0.0229 -0.202)
OKLCH	oklch(44.43% 0.203 276.5)
XYZ	xyz(12.9754, 7.6897, 50.6594)
Luminance	0.0769 (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

#3F38C0 #B9C038

analogous

#3875C0 #3F38C0 #8338C0

triadic

#3F38C0 #C03F38 #38C03F

tetradic

#3F38C0 #C03875 #B9C038 #38C083

square

#3F38C0 #C03875 #B9C038 #38C083

split-complementary

#3F38C0 #C08338 #75C038

monochromatic

#201C61 #2F2A91 #3F38C0 #6964D2 #9793DF

Accessibility & contrast

On white

8.27

#3F38C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3F38C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38C0

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38C0	#FFFFFF	#000000	##FFFFFF
##3F38C0	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C4

Deuteranopia (green-blind)

#0048BD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f38c0;
/* rgb */ color: rgb(63, 56, 192);
/* oklch */ color: oklch(44.4% 0.203 276.5);

Tailwind

colors: {
  custom: {
    50: '#8570d4',
    500: '#3f38c0',
    950: '#000000',
  },
}

SCSS

$custom: #3f38c0;
$custom-light: #8570d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38c0",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 192
  },
  "hsl": {
    "h": 243.088,
    "s": 54.839,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44431,
    "c": 0.20329,
    "h": 276.5
  },
  "luminance": 0.07691
}

Semantic roles & 50–950 ramp

primary

#3F38C0

secondary

#C7CB89

accent

#DE4AD7

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3F38C0

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

Preview Lab → · Contrast checker → · Palette generator →