#18153A#18153A

#18153A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.4% C 0.069 H 282.9°. Best body text is #FFFFFF at 17.40:1 contrast (WCAG AA passes).

Color values

HEX	#18153A
RGB	rgb(24, 21, 58)
HSL	hsl(245, 47%, 15%)
HSV	hsv(245, 64%, 23%)
CMYK	cmyk(58.6%, 63.8%, 0%, 77.3%)
CIE-LAB	lab(9.29, 13.81, -23.59)
CIE-LCH	lch(9.29, 27.33, 300.35°)
OKLab	oklab(22.36% 0.0155 -0.0674)
OKLCH	oklch(22.36% 0.069 282.9)
XYZ	xyz(1.4083, 1.0359, 4.1279)
Luminance	0.0104 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.55

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18153A #373A15

analogous

#15243A #18153A #2A153A

triadic

#18153A #3A1815 #153A18

tetradic

#18153A #3A1524 #373A15 #153A2A

square

#18153A #3A1524 #373A15 #153A2A

split-complementary

#18153A #3A2A15 #243A15

monochromatic

#090816 #090816 #18153A #2B2567 #3D3694

Accessibility & contrast

On white

17.40

#18153A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#18153A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18153A

17.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18153A	#FFFFFF	#000000	##FFFFFF
##18153A	1.00	17.40	1.21	17.40
#FFFFFF	17.40	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#021B3B

Deuteranopia (green-blind)

#011939

Tritanopia (blue-blind)

#0B1D25

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #18153a;
/* rgb */ color: rgb(24, 21, 58);
/* oklch */ color: oklch(22.4% 0.069 282.9);

Tailwind

colors: {
  custom: {
    50: '#585270',
    500: '#18153a',
    950: '#000000',
  },
}

SCSS

$custom: #18153a;
$custom-light: #585270;
$custom-dark: #000000;

JSON

{
  "hex": "#18153a",
  "rgb": {
    "r": 24,
    "g": 21,
    "b": 58
  },
  "hsl": {
    "h": 244.865,
    "s": 46.835,
    "l": 15.49
  },
  "oklch": {
    "l": 0.2236,
    "c": 0.06914,
    "h": 282.9
  },
  "luminance": 0.01036
}

Semantic roles & 50–950 ramp

primary

#18153A

secondary

#6D7139

accent

#D651CC

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#030207

muted

#78787A

Preview Lab

Preview with #18153A

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

Preview Lab → · Contrast checker → · Palette generator →