#18235C#18235C

#18235C is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.5% C 0.103 H 270.3°. Best body text is #FFFFFF at 14.65:1 contrast (WCAG AA passes).

Color values

HEX	#18235C
RGB	rgb(24, 35, 92)
HSL	hsl(230, 59%, 23%)
HSV	hsv(230, 74%, 36%)
CMYK	cmyk(73.9%, 62%, 0%, 63.9%)
CIE-LAB	lab(16.35, 16.96, -35.62)
CIE-LCH	lch(16.35, 39.45, 295.47°)
OKLab	oklab(28.54% 0.0005 -0.1026)
OKLCH	oklch(28.54% 0.103 270.3)
XYZ	xyz(2.9088, 2.1687, 10.3884)
Luminance	0.0217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18235C #5C5118

analogous

#18455C #18235C #2F185C

triadic

#18235C #5C1823 #235C18

tetradic

#18235C #5C1845 #5C5118 #185C2F

square

#18235C #5C1845 #5C5118 #185C2F

split-complementary

#18235C #5C2F18 #455C18

monochromatic

#060918 #0B112B #18235C #25358D #3148BD

Accessibility & contrast

On white

14.65

#18235C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#18235C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18235C

14.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18235C	#FFFFFF	#000000	##FFFFFF
##18235C	1.00	14.65	1.43	14.65
#FFFFFF	14.65	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5E

Deuteranopia (green-blind)

#00255B

Tritanopia (blue-blind)

#00313B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #18235c;
/* rgb */ color: rgb(24, 35, 92);
/* oklch */ color: oklch(28.5% 0.103 270.3);

Tailwind

colors: {
  custom: {
    50: '#5f5d8b',
    500: '#18235c',
    950: '#000000',
  },
}

SCSS

$custom: #18235c;
$custom-light: #5f5d8b;
$custom-dark: #000000;

JSON

{
  "hex": "#18235c",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 92
  },
  "hsl": {
    "h": 230.294,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.2854,
    "c": 0.10261,
    "h": 270.3
  },
  "luminance": 0.02169
}

Semantic roles & 50–950 ramp

primary

#18235C

secondary

#93853D

accent

#C946E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18235C

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

Preview Lab → · Contrast checker → · Palette generator →