#4B42E9#4B42E9

#4B42E9 is a mid, highly saturated blue. Relative luminance 0.113; OKLCH L 50.6% C 0.240 H 275.9°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#4B42E9
RGB	rgb(75, 66, 233)
HSL	hsl(243, 79%, 59%)
HSV	hsv(243, 72%, 91%)
CMYK	cmyk(67.8%, 71.7%, 0%, 8.6%)
CIE-LAB	lab(40.04, 53.62, -82.51)
CIE-LCH	lch(40.04, 98.40, 303.02°)
OKLab	oklab(50.6% 0.0248 -0.2384)
OKLCH	oklch(50.6% 0.24 275.9)
XYZ	xyz(19.5530, 11.2737, 78.2206)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B42E9 #E0E942

analogous

#428CE9 #4B42E9 #9F42E9

triadic

#4B42E9 #E94B42 #42E94B

tetradic

#4B42E9 #E9428C #E0E942 #42E99F

square

#4B42E9 #E9428C #E0E942 #42E99F

split-complementary

#4B42E9 #E99F42 #8CE942

monochromatic

#1A129E #2319D5 #4B42E9 #7F79EF #B3B0F6

Accessibility & contrast

On white

6.45

#4B42E9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#4B42E9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B42E9

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B42E9	#FFFFFF	#000000	##FFFFFF
##4B42E9	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066EE

Deuteranopia (green-blind)

#0057E6

Tritanopia (blue-blind)

#007192

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4b42e9;
/* rgb */ color: rgb(75, 66, 233);
/* oklch */ color: oklch(50.6% 0.240 275.9);

Tailwind

colors: {
  custom: {
    50: '#9278f1',
    500: '#4b42e9',
    950: '#000000',
  },
}

SCSS

$custom: #4b42e9;
$custom-light: #9278f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b42e9",
  "rgb": {
    "r": 75,
    "g": 66,
    "b": 233
  },
  "hsl": {
    "h": 243.234,
    "s": 79.147,
    "l": 58.627
  },
  "oklch": {
    "l": 0.50603,
    "c": 0.23972,
    "h": 275.9
  },
  "luminance": 0.11275
}

Semantic roles & 50–950 ramp

primary

#4B42E9

secondary

#E1E4A2

accent

#F632EB

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0F0917

muted

#7E7B85

Preview Lab

Preview with #4B42E9

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

Preview Lab → · Contrast checker → · Palette generator →