#4640B2#4640B2

#4640B2 is a dark, vivid blue. Relative luminance 0.082; OKLCH L 44.9% C 0.175 H 279.0°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#4640B2
RGB	rgb(70, 64, 178)
HSL	hsl(243, 47%, 47%)
HSV	hsv(243, 64%, 70%)
CMYK	cmyk(60.7%, 64%, 0%, 30.2%)
CIE-LAB	lab(34.36, 36.47, -59.95)
CIE-LCH	lch(34.36, 70.17, 301.31°)
OKLab	oklab(44.93% 0.0275 -0.1726)
OKLCH	oklch(44.93% 0.175 279)
XYZ	xyz(12.3925, 8.1823, 43.0372)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 1.48

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4640B2 #ACB240

analogous

#4073B2 #4640B2 #7F40B2

triadic

#4640B2 #B24640 #40B246

tetradic

#4640B2 #B24073 #ACB240 #40B27F

square

#4640B2 #B24073 #ACB240 #40B27F

split-complementary

#4640B2 #B27F40 #73B240

monochromatic

#232058 #343085 #4640B2 #6C67C8 #9894D8

Accessibility & contrast

On white

7.96

#4640B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#4640B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4640B2

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4640B2	#FFFFFF	#000000	##FFFFFF
##4640B2	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#004CB0

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4640b2;
/* rgb */ color: rgb(70, 64, 178);
/* oklch */ color: oklch(44.9% 0.175 279.0);

Tailwind

colors: {
  custom: {
    50: '#8575ca',
    500: '#4640b2',
    950: '#000000',
  },
}

SCSS

$custom: #4640b2;
$custom-light: #8575ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4640b2",
  "rgb": {
    "r": 70,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 243.158,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44928,
    "c": 0.17473,
    "h": 279
  },
  "luminance": 0.08183
}

Semantic roles & 50–950 ramp

primary

#4640B2

secondary

#C1C48A

accent

#D751D0

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4640B2

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

Preview Lab → · Contrast checker → · Palette generator →