#18255C#18255C

#18255C is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.0% C 0.100 H 269.2°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#18255C
RGB	rgb(24, 37, 92)
HSL	hsl(229, 59%, 23%)
HSV	hsv(229, 74%, 36%)
CMYK	cmyk(73.9%, 59.8%, 0%, 63.9%)
CIE-LAB	lab(16.94, 15.49, -34.66)
CIE-LCH	lch(16.94, 37.96, 294.09°)
OKLab	oklab(28.98% -0.0014 -0.0997)
OKLCH	oklch(28.98% 0.1 269.2)
XYZ	xyz(2.9694, 2.2897, 10.4086)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18255C #5C4F18

analogous

#18475C #18255C #2D185C

triadic

#18255C #5C1825 #255C18

tetradic

#18255C #5C1847 #5C4F18 #185C2D

square

#18255C #5C1847 #5C4F18 #185C2D

split-complementary

#18255C #5C2D18 #475C18

monochromatic

#060A18 #0B112B #18255C #25398D #314CBD

Accessibility & contrast

On white

14.40

#18255C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#18255C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18255C

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18255C	#FFFFFF	#000000	##FFFFFF
##18255C	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00275B

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18255c;
/* rgb */ color: rgb(24, 37, 92);
/* oklch */ color: oklch(29.0% 0.100 269.2);

Tailwind

colors: {
  custom: {
    50: '#5f5f8b',
    500: '#18255c',
    950: '#000000',
  },
}

SCSS

$custom: #18255c;
$custom-light: #5f5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#18255c",
  "rgb": {
    "r": 24,
    "g": 37,
    "b": 92
  },
  "hsl": {
    "h": 228.529,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.28982,
    "c": 0.09976,
    "h": 269.2
  },
  "luminance": 0.0229
}

Semantic roles & 50–950 ramp

primary

#18255C

secondary

#93823D

accent

#C446E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #18255C

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

Preview Lab → · Contrast checker → · Palette generator →