#4B40CB#4B40CB

#4B40CB is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.5% C 0.206 H 278.7°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#4B40CB
RGB	rgb(75, 64, 203)
HSL	hsl(245, 57%, 52%)
HSV	hsv(245, 68%, 80%)
CMYK	cmyk(63.1%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.88, 45.31, -70.49)
CIE-LCH	lch(36.88, 83.79, 302.73°)
OKLab	oklab(47.51% 0.031 -0.2033)
OKLCH	oklch(47.51% 0.206 278.7)
XYZ	xyz(15.5111, 9.4732, 57.4995)
Luminance	0.0947 (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

#4B40CB #C0CB40

analogous

#407BCB #4B40CB #9040CB

triadic

#4B40CB #CB4B40 #40CB4B

tetradic

#4B40CB #CB407B #C0CB40 #40CB90

square

#4B40CB #CB407B #C0CB40 #40CB90

split-complementary

#4B40CB #CB9040 #7BCB40

monochromatic

#251F72 #352CA2 #4B40CB #7870D8 #A6A0E5

Accessibility & contrast

On white

7.25

#4B40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#4B40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B40CB

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B40CB	#FFFFFF	#000000	##FFFFFF
##4B40CB	1.00	7.25	2.89	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0051C8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #4b40cb;
/* rgb */ color: rgb(75, 64, 203);
/* oklch */ color: oklch(47.5% 0.206 278.7);

Tailwind

colors: {
  custom: {
    50: '#8c76dc',
    500: '#4b40cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b40cb;
$custom-light: #8c76dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b40cb",
  "rgb": {
    "r": 75,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 244.748,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47509,
    "c": 0.20565,
    "h": 278.7
  },
  "luminance": 0.09474
}

Semantic roles & 50–950 ramp

primary

#4B40CB

secondary

#CDD295

accent

#E047D4

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4B40CB

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

Preview Lab → · Contrast checker → · Palette generator →