#1818A1#1818A1

#1818A1 is a dark, highly saturated blue. Relative luminance 0.034; OKLCH L 34.6% C 0.205 H 268.8°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#1818A1
RGB	rgb(24, 24, 161)
HSL	hsl(240, 74%, 36%)
HSV	hsv(240, 85%, 63%)
CMYK	cmyk(85.1%, 85.1%, 0%, 36.9%)
CIE-LAB	lab(21.65, 48.62, -70.76)
CIE-LCH	lch(21.65, 85.86, 304.49°)
OKLab	oklab(34.59% -0.0042 -0.2048)
OKLCH	oklch(34.59% 0.205 268.8)
XYZ	xyz(7.1341, 3.4198, 33.9954)
Luminance	0.0342 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1818A1 #A1A118

analogous

#185DA1 #1818A1 #5D18A1

triadic

#1818A1 #A11818 #18A118

tetradic

#1818A1 #A1185D #A1A118 #18A15D

square

#1818A1 #A1185D #A1A118 #18A15D

split-complementary

#1818A1 #A15D18 #5DA118

monochromatic

#080836 #10106C #1818A1 #2020D6 #4F4FE5

Accessibility & contrast

On white

12.47

#1818A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1818A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1818A1

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1818A1	#FFFFFF	#000000	##FFFFFF
##1818A1	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003BA5

Deuteranopia (green-blind)

#002C9F

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1818a1;
/* rgb */ color: rgb(24, 24, 161);
/* oklch */ color: oklch(34.6% 0.205 268.8);

Tailwind

colors: {
  custom: {
    50: '#735abe',
    500: '#1818a1',
    950: '#000000',
  },
}

SCSS

$custom: #1818a1;
$custom-light: #735abe;
$custom-dark: #000000;

JSON

{
  "hex": "#1818a1",
  "rgb": {
    "r": 24,
    "g": 24,
    "b": 161
  },
  "hsl": {
    "h": 240,
    "s": 74.054,
    "l": 36.275
  },
  "oklch": {
    "l": 0.34589,
    "c": 0.20489,
    "h": 268.8
  },
  "luminance": 0.03421
}

Semantic roles & 50–950 ramp

primary

#1818A1

secondary

#C7C74E

accent

#F137F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1818A1

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

Preview Lab → · Contrast checker → · Palette generator →