#4539B3#4539B3

#4539B3 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.8% C 0.185 H 280.0°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#4539B3
RGB	rgb(69, 57, 179)
HSL	hsl(246, 52%, 46%)
HSV	hsv(246, 68%, 70%)
CMYK	cmyk(61.5%, 68.2%, 0%, 29.8%)
CIE-LAB	lab(32.80, 40.85, -63.10)
CIE-LCH	lch(32.80, 75.17, 302.92°)
OKLab	oklab(43.8% 0.032 -0.1818)
OKLCH	oklch(43.8% 0.185 280)
XYZ	xyz(12.0515, 7.4452, 43.4411)
Luminance	0.0745 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.65

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4539B3 #A7B339

analogous

#396AB3 #4539B3 #8239B3

triadic

#4539B3 #B34539 #39B345

tetradic

#4539B3 #B3396A #A7B339 #39B382

square

#4539B3 #B3396A #A7B339 #39B382

split-complementary

#4539B3 #B38239 #6AB339

monochromatic

#211B56 #332A85 #4539B3 #685ECC #948CDA

Accessibility & contrast

On white

8.44

#4539B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#4539B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4539B3

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4539B3	#FFFFFF	#000000	##FFFFFF
##4539B3	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#005971

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4539b3;
/* rgb */ color: rgb(69, 57, 179);
/* oklch */ color: oklch(43.8% 0.185 280.0);

Tailwind

colors: {
  custom: {
    50: '#8571cb',
    500: '#4539b3',
    950: '#000000',
  },
}

SCSS

$custom: #4539b3;
$custom-light: #8571cb;
$custom-dark: #000000;

JSON

{
  "hex": "#4539b3",
  "rgb": {
    "r": 69,
    "g": 57,
    "b": 179
  },
  "hsl": {
    "h": 245.902,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43803,
    "c": 0.18462,
    "h": 280
  },
  "luminance": 0.07446
}

Semantic roles & 50–950 ramp

primary

#4539B3

secondary

#BEC583

accent

#DB4DCD

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4539B3

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

Preview Lab → · Contrast checker → · Palette generator →