#4737BF#4737BF

#4737BF is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.8% C 0.201 H 279.8°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#4737BF
RGB	rgb(71, 55, 191)
HSL	hsl(247, 55%, 48%)
HSV	hsv(247, 71%, 75%)
CMYK	cmyk(62.8%, 71.2%, 0%, 25.1%)
CIE-LAB	lab(33.63, 46.08, -68.82)
CIE-LCH	lch(33.63, 82.82, 303.81°)
OKLab	oklab(44.77% 0.0342 -0.1985)
OKLCH	oklch(44.77% 0.201 279.8)
XYZ	xyz(13.3657, 7.8325, 50.0876)
Luminance	0.0783 (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

#4737BF #AFBF37

analogous

#376BBF #4737BF #8B37BF

triadic

#4737BF #BF4737 #37BF47

tetradic

#4737BF #BF376B #AFBF37 #37BF8B

square

#4737BF #BF376B #AFBF37 #37BF8B

split-complementary

#4737BF #BF8B37 #6BBF37

monochromatic

#241C60 #35298F #4737BF #6F62D2 #9A91DF

Accessibility & contrast

On white

8.18

#4737BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#4737BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4737BF

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4737BF	#FFFFFF	#000000	##FFFFFF
##4737BF	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C3

Deuteranopia (green-blind)

#004ABC

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4737bf;
/* rgb */ color: rgb(71, 55, 191);
/* oklch */ color: oklch(44.8% 0.201 279.8);

Tailwind

colors: {
  custom: {
    50: '#8970d3',
    500: '#4737bf',
    950: '#000000',
  },
}

SCSS

$custom: #4737bf;
$custom-light: #8970d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4737bf",
  "rgb": {
    "r": 71,
    "g": 55,
    "b": 191
  },
  "hsl": {
    "h": 247.059,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44772,
    "c": 0.20145,
    "h": 279.8
  },
  "luminance": 0.07834
}

Semantic roles & 50–950 ramp

primary

#4737BF

secondary

#C2CA88

accent

#DF49CD

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0714

muted

#7E7A83

Preview Lab

Preview with #4737BF

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

Preview Lab → · Contrast checker → · Palette generator →