#4740E3#4740E3

#4740E3 is a mid, highly saturated blue. Relative luminance 0.106; OKLCH L 49.5% C 0.236 H 275.4°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#4740E3
RGB	rgb(71, 64, 227)
HSL	hsl(243, 74%, 57%)
HSV	hsv(243, 72%, 89%)
CMYK	cmyk(68.7%, 71.8%, 0%, 11%)
CIE-LAB	lab(38.81, 52.41, -81.12)
CIE-LCH	lch(38.81, 96.58, 302.87°)
OKLab	oklab(49.49% 0.0221 -0.2345)
OKLCH	oklch(49.49% 0.236 275.4)
XYZ	xyz(18.2925, 10.5507, 73.7306)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.02

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4740E3 #DCE340

analogous

#408AE3 #4740E3 #9940E3

triadic

#4740E3 #E34740 #40E347

tetradic

#4740E3 #E3408A #DCE340 #40E399

square

#4740E3 #E3408A #DCE340 #40E399

split-complementary

#4740E3 #E39940 #8AE340

monochromatic

#1B1693 #251DC8 #4740E3 #7A75EB #AEABF3

Accessibility & contrast

On white

6.75

#4740E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#4740E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4740E3

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4740E3	#FFFFFF	#000000	##FFFFFF
##4740E3	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063E8

Deuteranopia (green-blind)

#0054E0

Tritanopia (blue-blind)

#006E8E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4740e3;
/* rgb */ color: rgb(71, 64, 227);
/* oklch */ color: oklch(49.5% 0.236 275.4);

Tailwind

colors: {
  custom: {
    50: '#8f77ed',
    500: '#4740e3',
    950: '#000000',
  },
}

SCSS

$custom: #4740e3;
$custom-light: #8f77ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4740e3",
  "rgb": {
    "r": 71,
    "g": 64,
    "b": 227
  },
  "hsl": {
    "h": 242.577,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.49491,
    "c": 0.23553,
    "h": 275.4
  },
  "luminance": 0.10552
}

Semantic roles & 50–950 ramp

primary

#4740E3

secondary

#DEE19E

accent

#F137E9

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0916

muted

#7E7B84

Preview Lab

Preview with #4740E3

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

Preview Lab → · Contrast checker → · Palette generator →