#4640B9#4640B9

#4640B9 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.184 H 278.4°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#4640B9
RGB	rgb(70, 64, 185)
HSL	hsl(243, 49%, 49%)
HSV	hsv(243, 65%, 73%)
CMYK	cmyk(62.2%, 65.4%, 0%, 27.5%)
CIE-LAB	lab(34.94, 38.77, -63.14)
CIE-LCH	lch(34.94, 74.09, 301.55°)
OKLab	oklab(45.54% 0.0268 -0.1819)
OKLCH	oklch(45.54% 0.184 278.4)
XYZ	xyz(13.1133, 8.4707, 46.8335)
Luminance	0.0847 (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

#4640B9 #B3B940

analogous

#4077B9 #4640B9 #8340B9

triadic

#4640B9 #B94640 #40B946

tetradic

#4640B9 #B94077 #B3B940 #40B983

square

#4640B9 #B94077 #B3B940 #40B983

split-complementary

#4640B9 #B98340 #77B940

monochromatic

#24215E #35308C #4640B9 #6F6BCC #9B98DB

Accessibility & contrast

On white

7.79

#4640B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#4640B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4640B9

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4640B9	#FFFFFF	#000000	##FFFFFF
##4640B9	1.00	7.79	2.69	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BD

Deuteranopia (green-blind)

#004DB7

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4640b9;
/* rgb */ color: rgb(70, 64, 185);
/* oklch */ color: oklch(45.5% 0.184 278.4);

Tailwind

colors: {
  custom: {
    50: '#8675cf',
    500: '#4640b9',
    950: '#000000',
  },
}

SCSS

$custom: #4640b9;
$custom-light: #8675cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4640b9",
  "rgb": {
    "r": 70,
    "g": 64,
    "b": 185
  },
  "hsl": {
    "h": 242.975,
    "s": 48.594,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45535,
    "c": 0.18388,
    "h": 278.4
  },
  "luminance": 0.08472
}

Semantic roles & 50–950 ramp

primary

#4640B9

secondary

#C4C78E

accent

#D850D1

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4640B9

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

Preview Lab → · Contrast checker → · Palette generator →