#18163E#18163E

#18163E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 22.9% C 0.074 H 281.1°. Best body text is #FFFFFF at 17.17:1 contrast (WCAG AA passes).

Color values

HEX	#18163E
RGB	rgb(24, 22, 62)
HSL	hsl(243, 48%, 16%)
HSV	hsv(243, 65%, 24%)
CMYK	cmyk(61.3%, 64.5%, 0%, 75.7%)
CIE-LAB	lab(9.92, 14.60, -25.42)
CIE-LCH	lch(9.92, 29.32, 299.87°)
OKLab	oklab(22.94% 0.0142 -0.0728)
OKLCH	oklch(22.94% 0.074 281.1)
XYZ	xyz(1.5328, 1.1157, 4.6911)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.30

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18163E #3C3E16

analogous

#16283E #18163E #2C163E

triadic

#18163E #3E1816 #163E18

tetradic

#18163E #3E1628 #3C3E16 #163E2C

square

#18163E #3E1628 #3C3E16 #163E2C

split-complementary

#18163E #3E2C16 #283E16

monochromatic

#090817 #090817 #18163E #29266B #3B3698

Accessibility & contrast

On white

17.17

#18163E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#18163E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18163E

17.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18163E	#FFFFFF	#000000	##FFFFFF
##18163E	1.00	17.17	1.22	17.17
#FFFFFF	17.17	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D3F

Deuteranopia (green-blind)

#001A3D

Tritanopia (blue-blind)

#071F27

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #18163e;
/* rgb */ color: rgb(24, 22, 62);
/* oklch */ color: oklch(22.9% 0.074 281.1);

Tailwind

colors: {
  custom: {
    50: '#595374',
    500: '#18163e',
    950: '#000000',
  },
}

SCSS

$custom: #18163e;
$custom-light: #595374;
$custom-dark: #000000;

JSON

{
  "hex": "#18163e",
  "rgb": {
    "r": 24,
    "g": 22,
    "b": 62
  },
  "hsl": {
    "h": 243,
    "s": 47.619,
    "l": 16.471
  },
  "oklch": {
    "l": 0.22937,
    "c": 0.07416,
    "h": 281.1
  },
  "luminance": 0.01116
}

Semantic roles & 50–950 ramp

primary

#18163E

secondary

#72753B

accent

#D751D0

background

#F5F4F7

surface

#E9E7ED

border

#C5C3C8

text

#040208

muted

#79787B

Preview Lab

Preview with #18163E

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

Preview Lab → · Contrast checker → · Palette generator →