#181258#181258

#181258 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.9% C 0.119 H 277.1°. Best body text is #FFFFFF at 16.59:1 contrast (WCAG AA passes).

Color values

HEX	#181258
RGB	rgb(24, 18, 88)
HSL	hsl(245, 66%, 21%)
HSV	hsv(245, 80%, 35%)
CMYK	cmyk(72.7%, 79.5%, 0%, 65.5%)
CIE-LAB	lab(11.49, 27.24, -40.88)
CIE-LCH	lch(11.49, 49.12, 303.68°)
OKLab	oklab(24.88% 0.0148 -0.1181)
OKLCH	oklch(24.88% 0.119 277.1)
XYZ	xyz(2.3539, 1.3312, 9.3635)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181258 #525812

analogous

#122F58 #181258 #3B1258

triadic

#181258 #581812 #125818

tetradic

#181258 #58122F #525812 #12583B

square

#181258 #58122F #525812 #12583B

split-complementary

#181258 #583B12 #2F5812

monochromatic

#070519 #0A0825 #181258 #261C8B #3427BE

Accessibility & contrast

On white

16.59

#181258 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#181258 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181258

16.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181258	#FFFFFF	#000000	##FFFFFF
##181258	1.00	16.59	1.27	16.59
#FFFFFF	16.59	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215A

Deuteranopia (green-blind)

#001B57

Tritanopia (blue-blind)

#002634

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #181258;
/* rgb */ color: rgb(24, 18, 88);
/* oklch */ color: oklch(24.9% 0.119 277.1);

Tailwind

colors: {
  custom: {
    50: '#605188',
    500: '#181258',
    950: '#000000',
  },
}

SCSS

$custom: #181258;
$custom-light: #605188;
$custom-dark: #000000;

JSON

{
  "hex": "#181258",
  "rgb": {
    "r": 24,
    "g": 18,
    "b": 88
  },
  "hsl": {
    "h": 245.143,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24877,
    "c": 0.11902,
    "h": 277.1
  },
  "luminance": 0.01331
}

Semantic roles & 50–950 ramp

primary

#181258

secondary

#899135

accent

#E93FDA

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020B

muted

#7A787C

Preview Lab

Preview with #181258

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

Preview Lab → · Contrast checker → · Palette generator →