#4143E1#4143E1

#4143E1 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.4% C 0.232 H 273.4°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#4143E1
RGB	rgb(65, 67, 225)
HSL	hsl(239, 73%, 57%)
HSV	hsv(239, 71%, 88%)
CMYK	cmyk(71.1%, 70.2%, 0%, 11.8%)
CIE-LAB	lab(38.85, 49.49, -79.93)
CIE-LCH	lch(38.85, 94.01, 301.77°)
OKLab	oklab(49.36% 0.0138 -0.2312)
OKLCH	oklch(49.36% 0.232 273.4)
XYZ	xyz(17.7732, 10.5726, 72.3236)
Luminance	0.1057 (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

#4143E1 #E1DF41

analogous

#4193E1 #4143E1 #8F41E1

triadic

#4143E1 #E14143 #43E141

tetradic

#4143E1 #E14193 #E1DF41 #41E18F

square

#4143E1 #E14193 #E1DF41 #41E18F

split-complementary

#4143E1 #E18F41 #93E141

monochromatic

#171891 #1F21C6 #4143E1 #7677E9 #ABACF2

Accessibility & contrast

On white

6.74

#4143E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#4143E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4143E1

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143E1	#FFFFFF	#000000	##FFFFFF
##4143E1	1.00	6.74	3.11	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E6

Deuteranopia (green-blind)

#0054DE

Tritanopia (blue-blind)

#006F8D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4143e1;
/* rgb */ color: rgb(65, 67, 225);
/* oklch */ color: oklch(49.4% 0.232 273.4);

Tailwind

colors: {
  custom: {
    50: '#8c78ec',
    500: '#4143e1',
    950: '#000000',
  },
}

SCSS

$custom: #4143e1;
$custom-light: #8c78ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4143e1",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 225
  },
  "hsl": {
    "h": 239.25,
    "s": 72.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.49362,
    "c": 0.23158,
    "h": 273.4
  },
  "luminance": 0.10574
}

Semantic roles & 50–950 ramp

primary

#4143E1

secondary

#E0DF9E

accent

#ED38EF

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4143E1

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

Preview Lab → · Contrast checker → · Palette generator →