#18174A#18174A

#18174A is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.3% C 0.092 H 277.9°. Best body text is #FFFFFF at 16.66:1 contrast (WCAG AA passes).

Color values

HEX	#18174A
RGB	rgb(24, 23, 74)
HSL	hsl(241, 53%, 19%)
HSV	hsv(241, 69%, 29%)
CMYK	cmyk(67.6%, 68.9%, 0%, 71%)
CIE-LAB	lab(11.28, 18.54, -31.63)
CIE-LCH	lch(11.28, 36.66, 300.37°)
OKLab	oklab(24.28% 0.0127 -0.091)
OKLCH	oklch(24.28% 0.092 277.9)
XYZ	xyz(1.9187, 1.3012, 6.6273)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18174A #494A17

analogous

#17304A #18174A #32174A

triadic

#18174A #4A1817 #174A18

tetradic

#18174A #4A1730 #494A17 #174A32

square

#18174A #4A1730 #494A17 #174A32

split-complementary

#18174A #4A3217 #304A17

monochromatic

#080717 #09081B #18174A #272679 #3634A7

Accessibility & contrast

On white

16.66

#18174A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#18174A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18174A

16.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18174A	#FFFFFF	#000000	##FFFFFF
##18174A	1.00	16.66	1.26	16.66
#FFFFFF	16.66	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204C

Deuteranopia (green-blind)

#001C49

Tritanopia (blue-blind)

#00242D

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #18174a;
/* rgb */ color: rgb(24, 23, 74);
/* oklch */ color: oklch(24.3% 0.092 277.9);

Tailwind

colors: {
  custom: {
    50: '#5c547d',
    500: '#18174a',
    950: '#000000',
  },
}

SCSS

$custom: #18174a;
$custom-light: #5c547d;
$custom-dark: #000000;

JSON

{
  "hex": "#18174a",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 74
  },
  "hsl": {
    "h": 241.176,
    "s": 52.577,
    "l": 19.02
  },
  "oklch": {
    "l": 0.24282,
    "c": 0.0919,
    "h": 277.9
  },
  "luminance": 0.01301
}

Semantic roles & 50–950 ramp

primary

#18174A

secondary

#80813C

accent

#DC4CD9

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #18174A

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

Preview Lab → · Contrast checker → · Palette generator →