#3F44E4#3F44E4

#3F44E4 is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 49.7% C 0.235 H 272.6°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F44E4
RGB	rgb(63, 68, 228)
HSL	hsl(238, 75%, 57%)
HSV	hsv(238, 72%, 89%)
CMYK	cmyk(72.4%, 70.2%, 0%, 10.6%)
CIE-LAB	lab(39.23, 49.71, -81.03)
CIE-LCH	lch(39.23, 95.06, 301.53°)
OKLab	oklab(49.69% 0.0106 -0.2344)
OKLCH	oklch(49.69% 0.235 272.6)
XYZ	xyz(18.1159, 10.7906, 74.5118)
Luminance	0.1079 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.83

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F44E4 #E4DF3F

analogous

#3F96E4 #3F44E4 #8D3FE4

triadic

#3F44E4 #E43F44 #44E43F

tetradic

#3F44E4 #E43F96 #E4DF3F #3FE48D

square

#3F44E4 #E43F96 #E4DF3F #3FE48D

split-complementary

#3F44E4 #E48D3F #96E43F

monochromatic

#151994 #1C22C9 #3F44E4 #7578EC #AAADF3

Accessibility & contrast

On white

6.65

#3F44E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3F44E4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F44E4

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44E4	#FFFFFF	#000000	##FFFFFF
##3F44E4	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E9

Deuteranopia (green-blind)

#0054E1

Tritanopia (blue-blind)

#00718F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f44e4;
/* rgb */ color: rgb(63, 68, 228);
/* oklch */ color: oklch(49.7% 0.235 272.6);

Tailwind

colors: {
  custom: {
    50: '#8c79ee',
    500: '#3f44e4',
    950: '#000000',
  },
}

SCSS

$custom: #3f44e4;
$custom-light: #8c79ee;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44e4",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 228
  },
  "hsl": {
    "h": 238.182,
    "s": 75.342,
    "l": 57.059
  },
  "oklch": {
    "l": 0.49685,
    "c": 0.23466,
    "h": 272.6
  },
  "luminance": 0.10792
}

Semantic roles & 50–950 ramp

primary

#3F44E4

secondary

#E1DF9E

accent

#EC36F2

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0917

muted

#7E7B85

Preview Lab

Preview with #3F44E4

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

Preview Lab → · Contrast checker → · Palette generator →