#3F38D9#3F38D9

#3F38D9 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.9% C 0.233 H 274.5°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F38D9
RGB	rgb(63, 56, 217)
HSL	hsl(243, 68%, 54%)
HSV	hsv(243, 74%, 85%)
CMYK	cmyk(71%, 74.2%, 0%, 14.9%)
CIE-LAB	lab(35.78, 52.81, -80.42)
CIE-LCH	lch(35.78, 96.21, 303.29°)
OKLab	oklab(46.91% 0.0184 -0.2326)
OKLCH	oklch(46.91% 0.233 274.5)
XYZ	xyz(15.9843, 8.8933, 66.5064)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.78

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F38D9 #D2D938

analogous

#3881D9 #3F38D9 #8F38D9

triadic

#3F38D9 #D93F38 #38D93F

tetradic

#3F38D9 #D93881 #D2D938 #38D98F

square

#3F38D9 #D93881 #D2D938 #38D98F

split-complementary

#3F38D9 #D98F38 #81D938

monochromatic

#1D187E #2822B2 #3F38D9 #716BE3 #A29FED

Accessibility & contrast

On white

7.56

#3F38D9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3F38D9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38D9

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38D9	#FFFFFF	#000000	##FFFFFF
##3F38D9	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BDE

Deuteranopia (green-blind)

#004DD6

Tritanopia (blue-blind)

#006786

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f38d9;
/* rgb */ color: rgb(63, 56, 217);
/* oklch */ color: oklch(46.9% 0.233 274.5);

Tailwind

colors: {
  custom: {
    50: '#8a71e6',
    500: '#3f38d9',
    950: '#000000',
  },
}

SCSS

$custom: #3f38d9;
$custom-light: #8a71e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38d9",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 217
  },
  "hsl": {
    "h": 242.609,
    "s": 67.932,
    "l": 53.529
  },
  "oklch": {
    "l": 0.46908,
    "c": 0.23331,
    "h": 274.5
  },
  "luminance": 0.08895
}

Semantic roles & 50–950 ramp

primary

#3F38D9

secondary

#D6D994

accent

#EB3DE3

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3F38D9

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

Preview Lab → · Contrast checker → · Palette generator →