#4539BB#4539BB

#4539BB is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.5% C 0.195 H 279.1°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#4539BB
RGB	rgb(69, 57, 187)
HSL	hsl(246, 53%, 48%)
HSV	hsv(246, 70%, 73%)
CMYK	cmyk(63.1%, 69.5%, 0%, 26.7%)
CIE-LAB	lab(33.52, 43.41, -66.66)
CIE-LCH	lch(33.52, 79.55, 303.08°)
OKLab	oklab(44.54% 0.0308 -0.1923)
OKLCH	oklch(44.54% 0.195 279.1)
XYZ	xyz(12.8841, 7.7783, 47.8265)
Luminance	0.0778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4539BB #AFBB39

analogous

#396EBB #4539BB #8639BB

triadic

#4539BB #BB4539 #39BB45

tetradic

#4539BB #BB396E #AFBB39 #39BB86

square

#4539BB #BB396E #AFBB39 #39BB86

split-complementary

#4539BB #BB8639 #6EBB39

monochromatic

#221C5D #342B8C #4539BB #6C62CF #9891DD

Accessibility & contrast

On white

8.22

#4539BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4539BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4539BB

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4539BB	#FFFFFF	#000000	##FFFFFF
##4539BB	1.00	8.22	2.56	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4539bb;
/* rgb */ color: rgb(69, 57, 187);
/* oklch */ color: oklch(44.5% 0.195 279.1);

Tailwind

colors: {
  custom: {
    50: '#8771d1',
    500: '#4539bb',
    950: '#000000',
  },
}

SCSS

$custom: #4539bb;
$custom-light: #8771d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4539bb",
  "rgb": {
    "r": 69,
    "g": 57,
    "b": 187
  },
  "hsl": {
    "h": 245.538,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44538,
    "c": 0.19471,
    "h": 279.1
  },
  "luminance": 0.07779
}

Semantic roles & 50–950 ramp

primary

#4539BB

secondary

#C2C887

accent

#DD4BCF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #4539BB

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

Preview Lab → · Contrast checker → · Palette generator →