#18255A#18255A

#18255A is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.8% C 0.097 H 269.1°. Best body text is #FFFFFF at 14.47:1 contrast (WCAG AA passes).

Color values

HEX	#18255A
RGB	rgb(24, 37, 90)
HSL	hsl(228, 58%, 22%)
HSV	hsv(228, 73%, 35%)
CMYK	cmyk(73.3%, 58.9%, 0%, 64.7%)
CIE-LAB	lab(16.77, 14.67, -33.59)
CIE-LCH	lch(16.77, 36.66, 293.59°)
OKLab	oklab(28.8% -0.0015 -0.0966)
OKLCH	oklch(28.8% 0.097 269.1)
XYZ	xyz(2.8831, 2.2552, 9.9542)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18255A #5A4D18

analogous

#18465A #18255A #2C185A

triadic

#18255A #5A1825 #255A18

tetradic

#18255A #5A1846 #5A4D18 #185A2C

square

#18255A #5A1846 #5A4D18 #185A2C

split-complementary

#18255A #5A2C18 #465A18

monochromatic

#060A18 #0B112A #18255A #25398A #324DBB

Accessibility & contrast

On white

14.47

#18255A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#18255A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18255A

14.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18255A	#FFFFFF	#000000	##FFFFFF
##18255A	1.00	14.47	1.45	14.47
#FFFFFF	14.47	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5C

Deuteranopia (green-blind)

#002759

Tritanopia (blue-blind)

#00323B

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #18255a;
/* rgb */ color: rgb(24, 37, 90);
/* oklch */ color: oklch(28.8% 0.097 269.1);

Tailwind

colors: {
  custom: {
    50: '#5e5f89',
    500: '#18255a',
    950: '#000000',
  },
}

SCSS

$custom: #18255a;
$custom-light: #5e5f89;
$custom-dark: #000000;

JSON

{
  "hex": "#18255a",
  "rgb": {
    "r": 24,
    "g": 37,
    "b": 90
  },
  "hsl": {
    "h": 228.182,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.28804,
    "c": 0.09663,
    "h": 269.1
  },
  "luminance": 0.02256
}

Semantic roles & 50–950 ramp

primary

#18255A

secondary

#91803D

accent

#C347E1

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #18255A

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

Preview Lab → · Contrast checker → · Palette generator →