#3F38E2#3F38E2

#3F38E2 is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.8% C 0.244 H 273.9°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F38E2
RGB	rgb(63, 56, 226)
HSL	hsl(242, 75%, 55%)
HSV	hsv(242, 75%, 89%)
CMYK	cmyk(72.1%, 75.2%, 0%, 11.4%)
CIE-LAB	lab(36.70, 55.61, -84.06)
CIE-LCH	lch(36.70, 100.79, 303.48°)
OKLab	oklab(47.83% 0.0166 -0.2432)
OKLCH	oklch(47.83% 0.244 273.9)
XYZ	xyz(17.1870, 9.3744, 72.8404)
Luminance	0.0938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.80

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F38E2 #DBE238

analogous

#3886E2 #3F38E2 #9438E2

triadic

#3F38E2 #E23F38 #38E23F

tetradic

#3F38E2 #E23886 #DBE238 #38E294

square

#3F38E2 #E23886 #DBE238 #38E294

split-complementary

#3F38E2 #E29438 #86E238

monochromatic

#19148B #231CC1 #3F38E2 #736DEA #A6A3F2

Accessibility & contrast

On white

7.30

#3F38E2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#3F38E2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F38E2

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F38E2	#FFFFFF	#000000	##FFFFFF
##3F38E2	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EE7

Deuteranopia (green-blind)

#004EDF

Tritanopia (blue-blind)

#006A8B

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #3f38e2;
/* rgb */ color: rgb(63, 56, 226);
/* oklch */ color: oklch(47.8% 0.244 273.9);

Tailwind

colors: {
  custom: {
    50: '#8c72ed',
    500: '#3f38e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f38e2;
$custom-light: #8c72ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3f38e2",
  "rgb": {
    "r": 63,
    "g": 56,
    "b": 226
  },
  "hsl": {
    "h": 242.471,
    "s": 74.561,
    "l": 55.294
  },
  "oklch": {
    "l": 0.47827,
    "c": 0.24376,
    "h": 273.9
  },
  "luminance": 0.09376
}

Semantic roles & 50–950 ramp

primary

#3F38E2

secondary

#DCDE97

accent

#F137EA

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3F38E2

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

Preview Lab → · Contrast checker → · Palette generator →