#4639B4#4639B4

#4639B4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 44.0% C 0.186 H 280.3°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#4639B4
RGB	rgb(70, 57, 180)
HSL	hsl(246, 52%, 46%)
HSV	hsv(246, 68%, 71%)
CMYK	cmyk(61.1%, 68.3%, 0%, 29.4%)
CIE-LAB	lab(32.97, 41.32, -63.41)
CIE-LCH	lch(32.97, 75.68, 303.09°)
OKLab	oklab(43.97% 0.0332 -0.1827)
OKLCH	oklch(43.97% 0.186 280.3)
XYZ	xyz(12.2245, 7.5227, 43.9790)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.59

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4639B4 #A7B439

analogous

#396AB4 #4639B4 #8439B4

triadic

#4639B4 #B44639 #39B446

tetradic

#4639B4 #B4396A #A7B439 #39B484

square

#4639B4 #B4396A #A7B439 #39B484

split-complementary

#4639B4 #B48439 #6AB439

monochromatic

#221C57 #342A86 #4639B4 #6A5ECC #958DDB

Accessibility & contrast

On white

8.38

#4639B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#4639B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639B4

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639B4	#FFFFFF	#000000	##FFFFFF
##4639B4	1.00	8.38	2.50	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B8

Deuteranopia (green-blind)

#0049B2

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4639b4;
/* rgb */ color: rgb(70, 57, 180);
/* oklch */ color: oklch(44.0% 0.186 280.3);

Tailwind

colors: {
  custom: {
    50: '#8671cb',
    500: '#4639b4',
    950: '#000000',
  },
}

SCSS

$custom: #4639b4;
$custom-light: #8671cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4639b4",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 180
  },
  "hsl": {
    "h": 246.341,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43972,
    "c": 0.18571,
    "h": 280.3
  },
  "luminance": 0.07524
}

Semantic roles & 50–950 ramp

primary

#4639B4

secondary

#BEC583

accent

#DB4CCC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4639B4

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

Preview Lab → · Contrast checker → · Palette generator →