#4739AA#4739AA

#4739AA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.173 H 282.0°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#4739AA
RGB	rgb(71, 57, 170)
HSL	hsl(247, 50%, 45%)
HSV	hsv(247, 66%, 67%)
CMYK	cmyk(58.2%, 66.5%, 0%, 33.3%)
CIE-LAB	lab(32.19, 38.27, -58.73)
CIE-LCH	lch(32.19, 70.10, 303.09°)
OKLab	oklab(43.16% 0.0359 -0.1689)
OKLCH	oklch(43.16% 0.173 282)
XYZ	xyz(11.3151, 7.1674, 38.8096)
Luminance	0.0717 (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

#4739AA #9CAA39

analogous

#3963AA #4739AA #8039AA

triadic

#4739AA #AA4739 #39AA47

tetradic

#4739AA #AA3963 #9CAA39 #39AA80

square

#4739AA #AA3963 #9CAA39 #39AA80

split-complementary

#4739AA #AA8039 #63AA39

monochromatic

#211A4E #342A7C #4739AA #6759C7 #9187D7

Accessibility & contrast

On white

8.63

#4739AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#4739AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4739AA

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4739AA	#FFFFFF	#000000	##FFFFFF
##4739AA	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AE

Deuteranopia (green-blind)

#0048A8

Tritanopia (blue-blind)

#0D566C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4739aa;
/* rgb */ color: rgb(71, 57, 170);
/* oklch */ color: oklch(43.2% 0.173 282.0);

Tailwind

colors: {
  custom: {
    50: '#8570c4',
    500: '#4739aa',
    950: '#000000',
  },
}

SCSS

$custom: #4739aa;
$custom-light: #8570c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4739aa",
  "rgb": {
    "r": 71,
    "g": 57,
    "b": 170
  },
  "hsl": {
    "h": 247.434,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.4316,
    "c": 0.17272,
    "h": 282
  },
  "luminance": 0.07168
}

Semantic roles & 50–950 ramp

primary

#4739AA

secondary

#B8C17E

accent

#D94EC8

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4739AA

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

Preview Lab → · Contrast checker → · Palette generator →