#4637B5#4637B5

#4637B5 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.8% C 0.189 H 280.5°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#4637B5
RGB	rgb(70, 55, 181)
HSL	hsl(247, 53%, 46%)
HSV	hsv(247, 70%, 71%)
CMYK	cmyk(61.3%, 69.6%, 0%, 29%)
CIE-LAB	lab(32.63, 42.79, -64.55)
CIE-LCH	lch(32.63, 77.45, 303.54°)
OKLab	oklab(43.76% 0.0346 -0.1861)
OKLCH	oklch(43.76% 0.189 280.5)
XYZ	xyz(12.2298, 7.3698, 44.4851)
Luminance	0.0737 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.03

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4637B5 #A6B537

analogous

#3767B5 #4637B5 #8537B5

triadic

#4637B5 #B54637 #37B546

tetradic

#4637B5 #B53767 #A6B537 #37B585

square

#4637B5 #B53767 #A6B537 #37B585

split-complementary

#4637B5 #B58537 #67B537

monochromatic

#221A57 #342986 #4637B5 #695CCD #948BDC

Accessibility & contrast

On white

8.49

#4637B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#4637B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4637B5

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4637B5	#FFFFFF	#000000	##FFFFFF
##4637B5	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)

#0051B9

Deuteranopia (green-blind)

#0048B3

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4637b5;
/* rgb */ color: rgb(70, 55, 181);
/* oklch */ color: oklch(43.8% 0.189 280.5);

Tailwind

colors: {
  custom: {
    50: '#866fcc',
    500: '#4637b5',
    950: '#000000',
  },
}

SCSS

$custom: #4637b5;
$custom-light: #866fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4637b5",
  "rgb": {
    "r": 70,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 247.143,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43759,
    "c": 0.18926,
    "h": 280.5
  },
  "luminance": 0.07371
}

Semantic roles & 50–950 ramp

primary

#4637B5

secondary

#BEC682

accent

#DD4BCB

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4637B5

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

Preview Lab → · Contrast checker → · Palette generator →