#18233A#18233A

#18233A is a dark, muted blue. Relative luminance 0.017; OKLCH L 25.8% C 0.046 H 264.0°. Best body text is #FFFFFF at 15.67:1 contrast (WCAG AA passes).

Color values

HEX	#18233A
RGB	rgb(24, 35, 58)
HSL	hsl(221, 41%, 16%)
HSV	hsv(221, 59%, 23%)
CMYK	cmyk(58.6%, 39.7%, 0%, 77.3%)
CIE-LAB	lab(13.84, 3.20, -16.34)
CIE-LCH	lch(13.84, 16.65, 281.09°)
OKLab	oklab(25.82% -0.0048 -0.046)
OKLCH	oklch(25.82% 0.046 264)
XYZ	xyz(1.7412, 1.7016, 4.2389)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18233A #3A2F18

analogous

#18343A #18233A #1E183A

triadic

#18233A #3A1823 #233A18

tetradic

#18233A #3A1834 #3A2F18 #183A1E

square

#18233A #3A1834 #3A2F18 #183A1E

split-complementary

#18233A #3A1E18 #343A18

monochromatic

#090D16 #090D16 #18233A #2A3D65 #3C5791

Accessibility & contrast

On white

15.67

#18233A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#18233A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18233A

15.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18233A	#FFFFFF	#000000	##FFFFFF
##18233A	1.00	15.67	1.34	15.67
#FFFFFF	15.67	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A253B

Deuteranopia (green-blind)

#162239

Tritanopia (blue-blind)

#09282B

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #18233a;
/* rgb */ color: rgb(24, 35, 58);
/* oklch */ color: oklch(25.8% 0.046 264.0);

Tailwind

colors: {
  custom: {
    50: '#575d70',
    500: '#18233a',
    950: '#000000',
  },
}

SCSS

$custom: #18233a;
$custom-light: #575d70;
$custom-dark: #000000;

JSON

{
  "hex": "#18233a",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 58
  },
  "hsl": {
    "h": 220.588,
    "s": 41.463,
    "l": 16.078
  },
  "oklch": {
    "l": 0.25824,
    "c": 0.04629,
    "h": 264
  },
  "luminance": 0.01702
}

Semantic roles & 50–950 ramp

primary

#18233A

secondary

#70603E

accent

#AA57D1

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #18233A

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

Preview Lab → · Contrast checker → · Palette generator →