#4639BB#4639BB

#4639BB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.6% C 0.195 H 279.5°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#4639BB
RGB	rgb(70, 57, 187)
HSL	hsl(246, 53%, 48%)
HSV	hsv(246, 70%, 73%)
CMYK	cmyk(62.6%, 69.5%, 0%, 26.7%)
CIE-LAB	lab(33.59, 43.55, -66.53)
CIE-LCH	lch(33.59, 79.51, 303.21°)
OKLab	oklab(44.61% 0.0321 -0.1918)
OKLCH	oklch(44.61% 0.195 279.5)
XYZ	xyz(12.9557, 7.8152, 47.8298)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4639BB #AEBB39

analogous

#396DBB #4639BB #8739BB

triadic

#4639BB #BB4639 #39BB46

tetradic

#4639BB #BB396D #AEBB39 #39BB87

square

#4639BB #BB396D #AEBB39 #39BB87

split-complementary

#4639BB #BB8739 #6DBB39

monochromatic

#231C5D #342B8C #4639BB #6D62CF #9991DD

Accessibility & contrast

On white

8.19

#4639BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4639BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639BB

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639BB	#FFFFFF	#000000	##FFFFFF
##4639BB	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4639bb;
/* rgb */ color: rgb(70, 57, 187);
/* oklch */ color: oklch(44.6% 0.195 279.5);

Tailwind

colors: {
  custom: {
    50: '#8771d1',
    500: '#4639bb',
    950: '#000000',
  },
}

SCSS

$custom: #4639bb;
$custom-light: #8771d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4639bb",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 187
  },
  "hsl": {
    "h": 246,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44614,
    "c": 0.19452,
    "h": 279.5
  },
  "luminance": 0.07816
}

Semantic roles & 50–950 ramp

primary

#4639BB

secondary

#C2C887

accent

#DD4BCE

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #4639BB

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

Preview Lab → · Contrast checker → · Palette generator →