#3B18B4#3B18B4

#3B18B4 is a dark, highly saturated violet. Relative luminance 0.049; OKLCH L 39.1% C 0.218 H 279.6°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#3B18B4
RGB	rgb(59, 24, 180)
HSL	hsl(253, 76%, 40%)
HSV	hsv(253, 87%, 71%)
CMYK	cmyk(67.2%, 86.7%, 0%, 29.4%)
CIE-LAB	lab(26.38, 56.20, -74.30)
CIE-LCH	lch(26.38, 93.16, 307.10°)
OKLab	oklab(39.12% 0.0365 -0.2145)
OKLCH	oklch(39.12% 0.218 279.6)
XYZ	xyz(10.3659, 4.8775, 43.5664)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B18B4 #91B418

analogous

#1843B4 #3B18B4 #8918B4

triadic

#3B18B4 #B43B18 #18B43B

tetradic

#3B18B4 #B41843 #91B418 #18B489

square

#3B18B4 #B41843 #91B418 #18B489

split-complementary

#3B18B4 #B48918 #43B418

monochromatic

#180A48 #29117E #3B18B4 #5127E2 #7D5DE9

Accessibility & contrast

On white

10.63

#3B18B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#3B18B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B18B4

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B18B4	#FFFFFF	#000000	##FFFFFF
##3B18B4	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B8

Deuteranopia (green-blind)

#0038B1

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3b18b4;
/* rgb */ color: rgb(59, 24, 180);
/* oklch */ color: oklch(39.1% 0.218 279.6);

Tailwind

colors: {
  custom: {
    50: '#835ecc',
    500: '#3b18b4',
    950: '#000000',
  },
}

SCSS

$custom: #3b18b4;
$custom-light: #835ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b18b4",
  "rgb": {
    "r": 59,
    "g": 24,
    "b": 180
  },
  "hsl": {
    "h": 253.462,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.3912,
    "c": 0.21754,
    "h": 279.6
  },
  "luminance": 0.04878
}

Semantic roles & 50–950 ramp

primary

#3B18B4

secondary

#B4CD5B

accent

#F335C8

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #3B18B4

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

Preview Lab → · Contrast checker → · Palette generator →