#4740CB#4740CB

#4740CB is a mid, highly saturated blue. Relative luminance 0.093; OKLCH L 47.2% C 0.206 H 277.2°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#4740CB
RGB	rgb(71, 64, 203)
HSL	hsl(243, 57%, 52%)
HSV	hsv(243, 68%, 80%)
CMYK	cmyk(65%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.59, 44.77, -70.98)
CIE-LCH	lch(36.59, 83.92, 302.24°)
OKLab	oklab(47.22% 0.0259 -0.2048)
OKLCH	oklch(47.22% 0.206 277.2)
XYZ	xyz(15.2079, 9.3169, 57.4852)
Luminance	0.0932 (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

#4740CB #C4CB40

analogous

#407ECB #4740CB #8D40CB

triadic

#4740CB #CB4740 #40CB47

tetradic

#4740CB #CB407E #C4CB40 #40CB8D

square

#4740CB #CB407E #C4CB40 #40CB8D

split-complementary

#4740CB #CB8D40 #7ECB40

monochromatic

#231F72 #322CA2 #4740CB #7570D8 #A4A0E5

Accessibility & contrast

On white

7.33

#4740CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#4740CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4740CB

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4740CB	#FFFFFF	#000000	##FFFFFF
##4740CB	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#0050C8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #4740cb;
/* rgb */ color: rgb(71, 64, 203);
/* oklch */ color: oklch(47.2% 0.206 277.2);

Tailwind

colors: {
  custom: {
    50: '#8a76dc',
    500: '#4740cb',
    950: '#000000',
  },
}

SCSS

$custom: #4740cb;
$custom-light: #8a76dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4740cb",
  "rgb": {
    "r": 71,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 243.022,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.47224,
    "c": 0.20648,
    "h": 277.2
  },
  "luminance": 0.09318
}

Semantic roles & 50–950 ramp

primary

#4740CB

secondary

#CFD295

accent

#E047D9

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4740CB

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

Preview Lab → · Contrast checker → · Palette generator →