#18215B#18215B

#18215B is a dark, moderate blue. Relative luminance 0.020; OKLCH L 28.0% C 0.104 H 271.3°. Best body text is #FFFFFF at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#18215B
RGB	rgb(24, 33, 91)
HSL	hsl(232, 58%, 23%)
HSV	hsv(232, 74%, 36%)
CMYK	cmyk(73.6%, 63.7%, 0%, 64.3%)
CIE-LAB	lab(15.68, 18.02, -36.04)
CIE-LCH	lch(15.68, 40.29, 296.57°)
OKLab	oklab(28.01% 0.0023 -0.1039)
OKLCH	oklch(28.01% 0.104 271.3)
XYZ	xyz(2.8082, 2.0370, 10.1407)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18215B #5B5218

analogous

#18435B #18215B #30185B

triadic

#18215B #5B1821 #215B18

tetradic

#18215B #5B1843 #5B5218 #185B30

square

#18215B #5B1843 #5B5218 #185B30

split-complementary

#18215B #5B3018 #435B18

monochromatic

#060918 #0B0F2B #18215B #25338B #3244BC

Accessibility & contrast

On white

14.92

#18215B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#18215B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18215B

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18215B	#FFFFFF	#000000	##FFFFFF
##18215B	1.00	14.92	1.41	14.92
#FFFFFF	14.92	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5D

Deuteranopia (green-blind)

#00245A

Tritanopia (blue-blind)

#002F3A

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #18215b;
/* rgb */ color: rgb(24, 33, 91);
/* oklch */ color: oklch(28.0% 0.104 271.3);

Tailwind

colors: {
  custom: {
    50: '#5f5c8a',
    500: '#18215b',
    950: '#000000',
  },
}

SCSS

$custom: #18215b;
$custom-light: #5f5c8a;
$custom-dark: #000000;

JSON

{
  "hex": "#18215b",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 91
  },
  "hsl": {
    "h": 231.94,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.28014,
    "c": 0.1039,
    "h": 271.3
  },
  "luminance": 0.02037
}

Semantic roles & 50–950 ramp

primary

#18215B

secondary

#92863D

accent

#CD46E1

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18215B

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

Preview Lab → · Contrast checker → · Palette generator →