#3F4AE0#3F4AE0

#3F4AE0 is a mid, highly saturated blue. Relative luminance 0.113; OKLCH L 50.2% C 0.224 H 272.0°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F4AE0
RGB	rgb(63, 74, 224)
HSL	hsl(236, 72%, 56%)
HSV	hsv(236, 72%, 88%)
CMYK	cmyk(71.9%, 67%, 0%, 12.2%)
CIE-LAB	lab(40.14, 44.89, -77.25)
CIE-LCH	lch(40.14, 89.34, 300.16°)
OKLab	oklab(50.23% 0.0078 -0.2234)
OKLCH	oklch(50.23% 0.224 272)
XYZ	xyz(17.9487, 11.3343, 71.7484)
Luminance	0.1134 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4AE0 #E0D53F

analogous

#3F9BE0 #3F4AE0 #853FE0

triadic

#3F4AE0 #E03F4A #4AE03F

tetradic

#3F4AE0 #E03F9B #E0D53F #3FE085

square

#3F4AE0 #E03F9B #E0D53F #3FE085

split-complementary

#3F4AE0 #E0853F #9BE03F

monochromatic

#171F8E #1F2BC2 #3F4AE0 #747CE9 #A8ADF1

Accessibility & contrast

On white

6.43

#3F4AE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3F4AE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4AE0

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4AE0	#FFFFFF	#000000	##FFFFFF
##3F4AE0	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066E5

Deuteranopia (green-blind)

#0057DD

Tritanopia (blue-blind)

#00738F

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f4ae0;
/* rgb */ color: rgb(63, 74, 224);
/* oklch */ color: oklch(50.2% 0.224 272.0);

Tailwind

colors: {
  custom: {
    50: '#8a7deb',
    500: '#3f4ae0',
    950: '#000000',
  },
}

SCSS

$custom: #3f4ae0;
$custom-light: #8a7deb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4ae0",
  "rgb": {
    "r": 63,
    "g": 74,
    "b": 224
  },
  "hsl": {
    "h": 235.901,
    "s": 72.197,
    "l": 56.275
  },
  "oklch": {
    "l": 0.50232,
    "c": 0.22352,
    "h": 272
  },
  "luminance": 0.11336
}

Semantic roles & 50–950 ramp

primary

#3F4AE0

secondary

#DFDA9C

accent

#E239EF

background

#F9F7FE

surface

#F2EEFD

border

#CCC9D5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #3F4AE0

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

Preview Lab → · Contrast checker → · Palette generator →