#4740DB#4740DB

#4740DB is a mid, highly saturated blue. Relative luminance 0.101; OKLCH L 48.7% C 0.226 H 276.0°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#4740DB
RGB	rgb(71, 64, 219)
HSL	hsl(243, 68%, 55%)
HSV	hsv(243, 71%, 86%)
CMYK	cmyk(67.6%, 70.8%, 0%, 14.1%)
CIE-LAB	lab(38.06, 49.89, -77.80)
CIE-LCH	lch(38.06, 92.42, 302.67°)
OKLab	oklab(48.72% 0.0234 -0.2248)
OKLCH	oklch(48.72% 0.226 276)
XYZ	xyz(17.2139, 10.1193, 68.0502)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 3.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4740DB #D4DB40

analogous

#4086DB #4740DB #9540DB

triadic

#4740DB #DB4740 #40DB47

tetradic

#4740DB #DB4086 #D4DB40 #40DB95

square

#4740DB #DB4086 #D4DB40 #40DB95

split-complementary

#4740DB #DB9540 #86DB40

monochromatic

#1E1987 #2A23BB #4740DB #7973E5 #AAA7EE

Accessibility & contrast

On white

6.94

#4740DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#4740DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4740DB

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4740DB	#FFFFFF	#000000	##FFFFFF
##4740DB	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E0

Deuteranopia (green-blind)

#0053D8

Tritanopia (blue-blind)

#006B89

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4740db;
/* rgb */ color: rgb(71, 64, 219);
/* oklch */ color: oklch(48.7% 0.226 276.0);

Tailwind

colors: {
  custom: {
    50: '#8d76e7',
    500: '#4740db',
    950: '#000000',
  },
}

SCSS

$custom: #4740db;
$custom-light: #8d76e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4740db",
  "rgb": {
    "r": 71,
    "g": 64,
    "b": 219
  },
  "hsl": {
    "h": 242.71,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.48722,
    "c": 0.22601,
    "h": 276
  },
  "luminance": 0.10121
}

Semantic roles & 50–950 ramp

primary

#4740DB

secondary

#D9DC9B

accent

#EB3DE3

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4740DB

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

Preview Lab → · Contrast checker → · Palette generator →