#4639B3#4639B3

#4639B3 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.9% C 0.184 H 280.4°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#4639B3
RGB	rgb(70, 57, 179)
HSL	hsl(246, 52%, 46%)
HSV	hsv(246, 68%, 70%)
CMYK	cmyk(60.9%, 68.2%, 0%, 29.8%)
CIE-LAB	lab(32.88, 41.00, -62.96)
CIE-LCH	lch(32.88, 75.13, 303.07°)
OKLab	oklab(43.88% 0.0333 -0.1814)
OKLCH	oklch(43.88% 0.184 280.4)
XYZ	xyz(12.1230, 7.4821, 43.4444)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.60

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4639B3 #A6B339

analogous

#3969B3 #4639B3 #8339B3

triadic

#4639B3 #B34639 #39B346

tetradic

#4639B3 #B33969 #A6B339 #39B383

square

#4639B3 #B33969 #A6B339 #39B383

split-complementary

#4639B3 #B38339 #69B339

monochromatic

#221B56 #342A85 #4639B3 #695ECC #948CDA

Accessibility & contrast

On white

8.41

#4639B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#4639B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4639B3

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4639B3	#FFFFFF	#000000	##FFFFFF
##4639B3	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#0049B1

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4639b3;
/* rgb */ color: rgb(70, 57, 179);
/* oklch */ color: oklch(43.9% 0.184 280.4);

Tailwind

colors: {
  custom: {
    50: '#8671cb',
    500: '#4639b3',
    950: '#000000',
  },
}

SCSS

$custom: #4639b3;
$custom-light: #8671cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4639b3",
  "rgb": {
    "r": 70,
    "g": 57,
    "b": 179
  },
  "hsl": {
    "h": 246.393,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43881,
    "c": 0.18445,
    "h": 280.4
  },
  "luminance": 0.07483
}

Semantic roles & 50–950 ramp

primary

#4639B3

secondary

#BEC583

accent

#DB4DCC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4639B3

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

Preview Lab → · Contrast checker → · Palette generator →