#3F44E2#3F44E2

#3F44E2 is a mid, highly saturated blue. Relative luminance 0.107; OKLCH L 49.5% C 0.232 H 272.7°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F44E2
RGB	rgb(63, 68, 226)
HSL	hsl(238, 74%, 57%)
HSV	hsv(238, 72%, 89%)
CMYK	cmyk(72.1%, 69.9%, 0%, 11.4%)
CIE-LAB	lab(39.04, 49.05, -80.20)
CIE-LCH	lch(39.04, 94.01, 301.45°)
OKLab	oklab(49.49% 0.0109 -0.232)
OKLCH	oklch(49.49% 0.232 272.7)
XYZ	xyz(17.8399, 10.6802, 73.0581)
Luminance	0.1068 (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

#3F44E2 #E2DD3F

analogous

#3F95E2 #3F44E2 #8C3FE2

triadic

#3F44E2 #E23F44 #44E23F

tetradic

#3F44E2 #E23F95 #E2DD3F #3FE28C

square

#3F44E2 #E23F95 #E2DD3F #3FE28C

split-complementary

#3F44E2 #E28C3F #95E23F

monochromatic

#161A91 #1E23C6 #3F44E2 #7478EA #A9ACF2

Accessibility & contrast

On white

6.70

#3F44E2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3F44E2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F44E2

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F44E2	#FFFFFF	#000000	##FFFFFF
##3F44E2	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E7

Deuteranopia (green-blind)

#0054DF

Tritanopia (blue-blind)

#00708E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f44e2;
/* rgb */ color: rgb(63, 68, 226);
/* oklch */ color: oklch(49.5% 0.232 272.7);

Tailwind

colors: {
  custom: {
    50: '#8b79ec',
    500: '#3f44e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f44e2;
$custom-light: #8b79ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f44e2",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 226
  },
  "hsl": {
    "h": 238.16,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.49493,
    "c": 0.23226,
    "h": 272.7
  },
  "luminance": 0.10682
}

Semantic roles & 50–950 ramp

primary

#3F44E2

secondary

#E0DE9D

accent

#EB37F0

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #3F44E2

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

Preview Lab → · Contrast checker → · Palette generator →