#4537B3#4537B3

#4537B3 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.187 H 280.4°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#4537B3
RGB	rgb(69, 55, 179)
HSL	hsl(247, 53%, 46%)
HSV	hsv(247, 69%, 70%)
CMYK	cmyk(61.5%, 69.3%, 0%, 29.8%)
CIE-LAB	lab(32.37, 42.01, -63.80)
CIE-LCH	lch(32.37, 76.39, 303.37°)
OKLab	oklab(43.5% 0.0336 -0.1839)
OKLCH	oklch(43.5% 0.187 280.4)
XYZ	xyz(11.9545, 7.2514, 43.4088)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.09

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4537B3 #A5B337

analogous

#3767B3 #4537B3 #8337B3

triadic

#4537B3 #B34537 #37B345

tetradic

#4537B3 #B33767 #A5B337 #37B383

square

#4537B3 #B33767 #A5B337 #37B383

split-complementary

#4537B3 #B38337 #67B337

monochromatic

#211A55 #332984 #4537B3 #685BCD #938ADB

Accessibility & contrast

On white

8.57

#4537B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#4537B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4537B3

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4537B3	#FFFFFF	#000000	##FFFFFF
##4537B3	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B7

Deuteranopia (green-blind)

#0047B1

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4537b3;
/* rgb */ color: rgb(69, 55, 179);
/* oklch */ color: oklch(43.5% 0.187 280.4);

Tailwind

colors: {
  custom: {
    50: '#856fcb',
    500: '#4537b3',
    950: '#000000',
  },
}

SCSS

$custom: #4537b3;
$custom-light: #856fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4537b3",
  "rgb": {
    "r": 69,
    "g": 55,
    "b": 179
  },
  "hsl": {
    "h": 246.774,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43496,
    "c": 0.18692,
    "h": 280.4
  },
  "luminance": 0.07252
}

Semantic roles & 50–950 ramp

primary

#4537B3

secondary

#BDC581

accent

#DC4BCC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4537B3

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

Preview Lab → · Contrast checker → · Palette generator →