#18205B#18205B

#18205B is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.8% C 0.105 H 271.8°. Best body text is #FFFFFF at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#18205B
RGB	rgb(24, 32, 91)
HSL	hsl(233, 58%, 23%)
HSV	hsv(233, 74%, 36%)
CMYK	cmyk(73.6%, 64.8%, 0%, 64.3%)
CIE-LAB	lab(15.39, 18.75, -36.50)
CIE-LCH	lch(15.39, 41.04, 297.19°)
OKLab	oklab(27.8% 0.0032 -0.1052)
OKLCH	oklch(27.8% 0.105 271.8)
XYZ	xyz(2.7809, 1.9823, 10.1316)
Luminance	0.0198 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18205B #5B5318

analogous

#18415B #18205B #32185B

triadic

#18205B #5B1820 #205B18

tetradic

#18205B #5B1841 #5B5318 #185B32

square

#18205B #5B1841 #5B5318 #185B32

split-complementary

#18205B #5B3218 #415B18

monochromatic

#060918 #0B0F2B #18205B #25318B #3242BC

Accessibility & contrast

On white

15.04

#18205B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#18205B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18205B

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18205B	#FFFFFF	#000000	##FFFFFF
##18205B	1.00	15.04	1.40	15.04
#FFFFFF	15.04	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5D

Deuteranopia (green-blind)

#00245A

Tritanopia (blue-blind)

#002F3A

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18205b;
/* rgb */ color: rgb(24, 32, 91);
/* oklch */ color: oklch(27.8% 0.105 271.8);

Tailwind

colors: {
  custom: {
    50: '#5f5b8a',
    500: '#18205b',
    950: '#000000',
  },
}

SCSS

$custom: #18205b;
$custom-light: #5f5b8a;
$custom-dark: #000000;

JSON

{
  "hex": "#18205b",
  "rgb": {
    "r": 24,
    "g": 32,
    "b": 91
  },
  "hsl": {
    "h": 232.836,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.27802,
    "c": 0.1053,
    "h": 271.8
  },
  "luminance": 0.01983
}

Semantic roles & 50–950 ramp

primary

#18205B

secondary

#92873D

accent

#CF46E1

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18205B

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

Preview Lab → · Contrast checker → · Palette generator →