#2818B3#2818B3

#2818B3 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.7% C 0.221 H 272.5°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#2818B3
RGB	rgb(40, 24, 179)
HSL	hsl(246, 76%, 40%)
HSV	hsv(246, 87%, 70%)
CMYK	cmyk(77.7%, 86.6%, 0%, 29.8%)
CIE-LAB	lab(24.82, 54.74, -76.34)
CIE-LCH	lch(24.82, 93.94, 305.64°)
OKLab	oklab(37.65% 0.0097 -0.2207)
OKLCH	oklch(37.65% 0.221 272.5)
XYZ	xyz(9.3357, 4.3580, 42.9883)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2818B3 #A3B318

analogous

#1855B3 #2818B3 #7618B3

triadic

#2818B3 #B32818 #18B328

tetradic

#2818B3 #B31855 #A3B318 #18B376

square

#2818B3 #B31855 #A3B318 #18B376

split-complementary

#2818B3 #B37618 #55B318

monochromatic

#100A47 #1C117D #2818B3 #3A26E2 #6B5CE9

Accessibility & contrast

On white

11.22

#2818B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#2818B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2818B3

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2818B3	#FFFFFF	#000000	##FFFFFF
##2818B3	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042B7

Deuteranopia (green-blind)

#0033B0

Tritanopia (blue-blind)

#004D6A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #2818b3;
/* rgb */ color: rgb(40, 24, 179);
/* oklch */ color: oklch(37.7% 0.221 272.5);

Tailwind

colors: {
  custom: {
    50: '#7c5ccb',
    500: '#2818b3',
    950: '#000000',
  },
}

SCSS

$custom: #2818b3;
$custom-light: #7c5ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2818b3",
  "rgb": {
    "r": 40,
    "g": 24,
    "b": 179
  },
  "hsl": {
    "h": 246.194,
    "s": 76.355,
    "l": 39.804
  },
  "oklch": {
    "l": 0.37651,
    "c": 0.22094,
    "h": 272.5
  },
  "luminance": 0.04359
}

Semantic roles & 50–950 ramp

primary

#2818B3

secondary

#C1CD5A

accent

#F335DF

background

#F8F5FC

surface

#F0E9F9

border

#CBC5D2

text

#0C0414

muted

#7D7982

Preview Lab

Preview with #2818B3

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

Preview Lab → · Contrast checker → · Palette generator →