#4637B4#4637B4

#4637B4 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.7% C 0.188 H 280.7°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#4637B4
RGB	rgb(70, 55, 180)
HSL	hsl(247, 53%, 46%)
HSV	hsv(247, 69%, 71%)
CMYK	cmyk(61.1%, 69.4%, 0%, 29.4%)
CIE-LAB	lab(32.54, 42.48, -64.11)
CIE-LCH	lch(32.54, 76.90, 303.53°)
OKLab	oklab(43.67% 0.0348 -0.1848)
OKLCH	oklch(43.67% 0.188 280.7)
XYZ	xyz(12.1276, 7.3289, 43.9467)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.04

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4637B4 #A5B437

analogous

#3766B4 #4637B4 #8437B4

triadic

#4637B4 #B44637 #37B446

tetradic

#4637B4 #B43766 #A5B437 #37B484

square

#4637B4 #B43766 #A5B437 #37B484

split-complementary

#4637B4 #B48437 #66B437

monochromatic

#221A56 #342985 #4637B4 #695BCD #948ADB

Accessibility & contrast

On white

8.52

#4637B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#4637B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637B4

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637B4	#FFFFFF	#000000	##FFFFFF
##4637B4	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B8

Deuteranopia (green-blind)

#0048B2

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4637b4;
/* rgb */ color: rgb(70, 55, 180);
/* oklch */ color: oklch(43.7% 0.188 280.7);

Tailwind

colors: {
  custom: {
    50: '#866fcc',
    500: '#4637b4',
    950: '#000000',
  },
}

SCSS

$custom: #4637b4;
$custom-light: #866fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4637b4",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 180
  },
  "hsl": {
    "h": 247.2,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43667,
    "c": 0.18801,
    "h": 280.7
  },
  "luminance": 0.0733
}

Semantic roles & 50–950 ramp

primary

#4637B4

secondary

#BDC681

accent

#DD4BCB

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4637B4

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

Preview Lab → · Contrast checker → · Palette generator →