#4639B5#4639B5

#4639B5 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.1% C 0.187 H 280.2°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#4639B5
RGB	rgb(70, 57, 181)
HSL	hsl(246, 52%, 47%)
HSV	hsv(246, 69%, 71%)
CMYK	cmyk(61.3%, 68.5%, 0%, 29%)
CIE-LAB	lab(33.06, 41.64, -63.86)
CIE-LCH	lch(33.06, 76.23, 303.10°)
OKLab	oklab(44.06% 0.033 -0.184)
OKLCH	oklch(44.06% 0.187 280.2)
XYZ	xyz(12.3268, 7.5636, 44.5175)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.58

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4639B5 #A8B539

analogous

#396AB5 #4639B5 #8439B5

triadic

#4639B5 #B54639 #39B546

tetradic

#4639B5 #B5396A #A8B539 #39B584

square

#4639B5 #B5396A #A8B539 #39B584

split-complementary

#4639B5 #B58439 #6AB539

monochromatic

#221C58 #342A86 #4639B5 #6A5FCD #958DDB

Accessibility & contrast

On white

8.36

#4639B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#4639B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639B5

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639B5	#FFFFFF	#000000	##FFFFFF
##4639B5	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B9

Deuteranopia (green-blind)

#0049B3

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4639b5;
/* rgb */ color: rgb(70, 57, 181);
/* oklch */ color: oklch(44.1% 0.187 280.2);

Tailwind

colors: {
  custom: {
    50: '#8671cc',
    500: '#4639b5',
    950: '#000000',
  },
}

SCSS

$custom: #4639b5;
$custom-light: #8671cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4639b5",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 181
  },
  "hsl": {
    "h": 246.29,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44063,
    "c": 0.18698,
    "h": 280.2
  },
  "luminance": 0.07565
}

Semantic roles & 50–950 ramp

primary

#4639B5

secondary

#BFC684

accent

#DC4CCD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4639B5

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

Preview Lab → · Contrast checker → · Palette generator →