#4639B0#4639B0

#4639B0 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.6% C 0.181 H 280.8°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#4639B0
RGB	rgb(70, 57, 176)
HSL	hsl(247, 51%, 46%)
HSV	hsv(247, 68%, 69%)
CMYK	cmyk(60.2%, 67.6%, 0%, 31%)
CIE-LAB	lab(32.62, 40.03, -61.61)
CIE-LCH	lch(32.62, 73.47, 303.02°)
OKLab	oklab(43.61% 0.0338 -0.1774)
OKLCH	oklch(43.61% 0.181 280.8)
XYZ	xyz(11.8229, 7.3621, 41.8639)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4639B0 #A3B039

analogous

#3967B0 #4639B0 #8139B0

triadic

#4639B0 #B04639 #39B046

tetradic

#4639B0 #B03967 #A3B039 #39B081

square

#4639B0 #B03967 #A3B039 #39B081

split-complementary

#4639B0 #B08139 #67B039

monochromatic

#211B54 #342A82 #4639B0 #685CCA #938AD9

Accessibility & contrast

On white

8.49

#4639B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#4639B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639B0

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639B0	#FFFFFF	#000000	##FFFFFF
##4639B0	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B4

Deuteranopia (green-blind)

#0048AE

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4639b0;
/* rgb */ color: rgb(70, 57, 176);
/* oklch */ color: oklch(43.6% 0.181 280.8);

Tailwind

colors: {
  custom: {
    50: '#8571c9',
    500: '#4639b0',
    950: '#000000',
  },
}

SCSS

$custom: #4639b0;
$custom-light: #8571c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4639b0",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 176
  },
  "hsl": {
    "h": 246.555,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43611,
    "c": 0.18062,
    "h": 280.8
  },
  "luminance": 0.07363
}

Semantic roles & 50–950 ramp

primary

#4639B0

secondary

#BCC481

accent

#DB4DCB

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4639B0

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

Preview Lab → · Contrast checker → · Palette generator →