#18174E#18174E

#18174E is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.7% C 0.098 H 277.2°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).

Color values

HEX	#18174E
RGB	rgb(24, 23, 78)
HSL	hsl(241, 54%, 20%)
HSV	hsv(241, 71%, 31%)
CMYK	cmyk(69.2%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(11.67, 20.10, -33.77)
CIE-LCH	lch(11.67, 39.30, 300.76°)
OKLab	oklab(24.68% 0.0124 -0.0973)
OKLCH	oklch(24.68% 0.098 277.2)
XYZ	xyz(2.0578, 1.3569, 7.3597)
Luminance	0.0136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 5.83

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18174E #4D4E17

analogous

#17324E #18174E #34174E

triadic

#18174E #4E1817 #174E18

tetradic

#18174E #4E1732 #4D4E17 #174E34

square

#18174E #4E1732 #4D4E17 #174E34

split-complementary

#18174E #4E3417 #324E17

monochromatic

#070718 #09091F #18174E #27257D #3533AD

Accessibility & contrast

On white

16.52

#18174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#18174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18174E

16.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18174E	#FFFFFF	#000000	##FFFFFF
##18174E	1.00	16.52	1.27	16.52
#FFFFFF	16.52	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002150

Deuteranopia (green-blind)

#001C4D

Tritanopia (blue-blind)

#002530

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #18174e;
/* rgb */ color: rgb(24, 23, 78);
/* oklch */ color: oklch(24.7% 0.098 277.2);

Tailwind

colors: {
  custom: {
    50: '#5d5480',
    500: '#18174e',
    950: '#000000',
  },
}

SCSS

$custom: #18174e;
$custom-light: #5d5480;
$custom-dark: #000000;

JSON

{
  "hex": "#18174e",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 241.091,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24681,
    "c": 0.09808,
    "h": 277.2
  },
  "luminance": 0.01357
}

Semantic roles & 50–950 ramp

primary

#18174E

secondary

#84853C

accent

#DE4ADB

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04020A

muted

#79787C

Preview Lab

Preview with #18174E

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

Preview Lab → · Contrast checker → · Palette generator →