#4539BC#4539BC

#4539BC is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.6% C 0.196 H 279.0°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#4539BC
RGB	rgb(69, 57, 188)
HSL	hsl(245, 53%, 48%)
HSV	hsv(245, 70%, 74%)
CMYK	cmyk(63.3%, 69.7%, 0%, 26.3%)
CIE-LAB	lab(33.61, 43.73, -67.10)
CIE-LCH	lch(33.61, 80.09, 303.10°)
OKLab	oklab(44.63% 0.0306 -0.1935)
OKLCH	oklch(44.63% 0.196 279)
XYZ	xyz(12.9916, 7.8213, 48.3922)
Luminance	0.0782 (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

#4539BC #B0BC39

analogous

#396EBC #4539BC #8639BC

triadic

#4539BC #BC4539 #39BC45

tetradic

#4539BC #BC396E #B0BC39 #39BC86

square

#4539BC #BC396E #B0BC39 #39BC86

split-complementary

#4539BC #BC8639 #6EBC39

monochromatic

#231D5E #342B8D #4539BC #6D63D0 #9992DE

Accessibility & contrast

On white

8.19

#4539BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4539BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4539BC

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4539BC	#FFFFFF	#000000	##FFFFFF
##4539BC	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C0

Deuteranopia (green-blind)

#004ABA

Tritanopia (blue-blind)

#005C76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4539bc;
/* rgb */ color: rgb(69, 57, 188);
/* oklch */ color: oklch(44.6% 0.196 279.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4539bc",
  "rgb": {
    "r": 69,
    "g": 57,
    "b": 188
  },
  "hsl": {
    "h": 245.496,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44631,
    "c": 0.19596,
    "h": 279
  },
  "luminance": 0.07822
}

Semantic roles & 50–950 ramp

primary

#4539BC

secondary

#C3C988

accent

#DD4BCF

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #4539BC

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

Preview Lab → · Contrast checker → · Palette generator →