#18227B#18227B

#18227B is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.149 H 269.8°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#18227B
RGB	rgb(24, 34, 123)
HSL	hsl(234, 67%, 29%)
HSV	hsv(234, 80%, 48%)
CMYK	cmyk(80.5%, 72.4%, 0%, 51.8%)
CIE-LAB	lab(19.09, 29.94, -51.32)
CIE-LCH	lch(19.09, 59.42, 300.26°)
OKLab	oklab(31.47% -0.0005 -0.1486)
OKLCH	oklch(31.47% 0.149 269.8)
XYZ	xyz(4.5226, 2.7678, 19.0309)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18227B #7B7118

analogous

#18547B #18227B #40187B

triadic

#18227B #7B1822 #227B18

tetradic

#18227B #7B1854 #7B7118 #187B40

square

#18227B #7B1854 #7B7118 #187B40

split-complementary

#18227B #7B4018 #547B18

monochromatic

#05071A #0E1448 #18227B #2230AE #3646D8

Accessibility & contrast

On white

13.52

#18227B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#18227B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18227B

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18227B	#FFFFFF	#000000	##FFFFFF
##18227B	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#002A79

Tritanopia (blue-blind)

#003B4B

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18227b;
/* rgb */ color: rgb(24, 34, 123);
/* oklch */ color: oklch(31.5% 0.149 269.8);

Tailwind

colors: {
  custom: {
    50: '#685da2',
    500: '#18227b',
    950: '#000000',
  },
}

SCSS

$custom: #18227b;
$custom-light: #685da2;
$custom-dark: #000000;

JSON

{
  "hex": "#18227b",
  "rgb": {
    "r": 24,
    "g": 34,
    "b": 123
  },
  "hsl": {
    "h": 233.939,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31472,
    "c": 0.14861,
    "h": 269.8
  },
  "luminance": 0.02768
}

Semantic roles & 50–950 ramp

primary

#18227B

secondary

#B0A43F

accent

#D93EEA

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #18227B

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

Preview Lab → · Contrast checker → · Palette generator →