#4637AC#4637AC

#4637AC is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.9% C 0.178 H 281.7°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#4637AC
RGB	rgb(70, 55, 172)
HSL	hsl(248, 52%, 45%)
HSV	hsv(248, 68%, 67%)
CMYK	cmyk(59.3%, 68%, 0%, 32.5%)
CIE-LAB	lab(31.83, 39.93, -60.50)
CIE-LCH	lch(31.83, 72.49, 303.43°)
OKLab	oklab(42.94% 0.036 -0.1742)
OKLCH	oklch(42.94% 0.178 281.7)
XYZ	xyz(11.3360, 7.0123, 39.7779)
Luminance	0.0701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4637AC #9DAC37

analogous

#3763AC #4637AC #8137AC

triadic

#4637AC #AC4637 #37AC46

tetradic

#4637AC #AC3763 #9DAC37 #37AC81

square

#4637AC #AC3763 #9DAC37 #37AC81

split-complementary

#4637AC #AC8137 #63AC37

monochromatic

#20194F #33287E #4637AC #6657C9 #9085D8

Accessibility & contrast

On white

8.74

#4637AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#4637AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637AC

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637AC	#FFFFFF	#000000	##FFFFFF
##4637AC	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#01556D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4637ac;
/* rgb */ color: rgb(70, 55, 172);
/* oklch */ color: oklch(42.9% 0.178 281.7);

Tailwind

colors: {
  custom: {
    50: '#856fc6',
    500: '#4637ac',
    950: '#000000',
  },
}

SCSS

$custom: #4637ac;
$custom-light: #856fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#4637ac",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 247.692,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42939,
    "c": 0.17787,
    "h": 281.7
  },
  "luminance": 0.07013
}

Semantic roles & 50–950 ramp

primary

#4637AC

secondary

#B9C27D

accent

#DB4DC9

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4637AC

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

Preview Lab → · Contrast checker → · Palette generator →