#18205C#18205C

#18205C is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.107 H 271.7°. Best body text is #FFFFFF at 15.00:1 contrast (WCAG AA passes).

Color values

HEX	#18205C
RGB	rgb(24, 32, 92)
HSL	hsl(233, 59%, 23%)
HSV	hsv(233, 74%, 36%)
CMYK	cmyk(73.9%, 65.2%, 0%, 63.9%)
CIE-LAB	lab(15.49, 19.15, -37.02)
CIE-LCH	lch(15.49, 41.68, 297.36°)
OKLab	oklab(27.9% 0.0032 -0.1068)
OKLCH	oklch(27.9% 0.107 271.7)
XYZ	xyz(2.8243, 1.9997, 10.3603)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18205C #5C5418

analogous

#18425C #18205C #32185C

triadic

#18205C #5C1820 #205C18

tetradic

#18205C #5C1842 #5C5418 #185C32

square

#18205C #5C1842 #5C5418 #185C32

split-complementary

#18205C #5C3218 #425C18

monochromatic

#060818 #0B0F2B #18205C #25318D #3142BD

Accessibility & contrast

On white

15.00

#18205C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#18205C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18205C

15.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18205C	#FFFFFF	#000000	##FFFFFF
##18205C	1.00	15.00	1.40	15.00
#FFFFFF	15.00	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5E

Deuteranopia (green-blind)

#00245B

Tritanopia (blue-blind)

#002F3A

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18205c;
/* rgb */ color: rgb(24, 32, 92);
/* oklch */ color: oklch(27.9% 0.107 271.7);

Tailwind

colors: {
  custom: {
    50: '#5f5b8b',
    500: '#18205c',
    950: '#000000',
  },
}

SCSS

$custom: #18205c;
$custom-light: #5f5b8b;
$custom-dark: #000000;

JSON

{
  "hex": "#18205c",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 92
  },
  "hsl": {
    "h": 232.941,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27898,
    "c": 0.10682,
    "h": 271.7
  },
  "luminance": 0.02
}

Semantic roles & 50–950 ramp

primary

#18205C

secondary

#93893D

accent

#CF46E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18205C

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

Preview Lab → · Contrast checker → · Palette generator →