#18238F#18238F

#18238F is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.9% C 0.174 H 268.8°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#18238F
RGB	rgb(24, 35, 143)
HSL	hsl(234, 71%, 33%)
HSV	hsv(234, 83%, 56%)
CMYK	cmyk(83.2%, 75.5%, 0%, 43.9%)
CIE-LAB	lab(21.50, 36.71, -59.93)
CIE-LCH	lch(21.50, 70.28, 301.49°)
OKLab	oklab(33.85% -0.0035 -0.1737)
OKLCH	oklch(33.85% 0.174 268.8)
XYZ	xyz(5.9339, 3.3787, 26.3207)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18238F #8F8418

analogous

#185E8F #18238F #49188F

triadic

#18238F #8F1823 #238F18

tetradic

#18238F #8F185E #8F8418 #188F49

square

#18238F #8F185E #8F8418 #188F49

split-complementary

#18238F #8F4918 #5E8F18

monochromatic

#060926 #0F165B #18238F #2130C3 #4251DF

Accessibility & contrast

On white

12.53

#18238F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#18238F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18238F

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18238F	#FFFFFF	#000000	##FFFFFF
##18238F	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003992

Deuteranopia (green-blind)

#002E8D

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #18238f;
/* rgb */ color: rgb(24, 35, 143);
/* oklch */ color: oklch(33.9% 0.174 268.8);

Tailwind

colors: {
  custom: {
    50: '#6d5fb1',
    500: '#18238f',
    950: '#000000',
  },
}

SCSS

$custom: #18238f;
$custom-light: #6d5fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#18238f",
  "rgb": {
    "r": 24,
    "g": 35,
    "b": 143
  },
  "hsl": {
    "h": 234.454,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33854,
    "c": 0.1737,
    "h": 268.8
  },
  "luminance": 0.03379
}

Semantic roles & 50–950 ramp

primary

#18238F

secondary

#C0B443

accent

#DD3AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #18238F

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

Preview Lab → · Contrast checker → · Palette generator →