#181750#181750

#181750 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.9% C 0.101 H 276.9°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#181750
RGB	rgb(24, 23, 80)
HSL	hsl(241, 55%, 20%)
HSV	hsv(241, 71%, 31%)
CMYK	cmyk(70%, 71.2%, 0%, 68.6%)
CIE-LAB	lab(11.86, 20.88, -34.82)
CIE-LCH	lch(11.86, 40.60, 300.95°)
OKLab	oklab(24.89% 0.0121 -0.1004)
OKLCH	oklch(24.89% 0.101 276.9)
XYZ	xyz(2.1306, 1.3860, 7.7431)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.06

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181750 #4F5017

analogous

#173250 #181750 #351750

triadic

#181750 #501817 #175018

tetradic

#181750 #501732 #4F5017 #175035

square

#181750 #501732 #4F5017 #175035

split-complementary

#181750 #503517 #325017

monochromatic

#070718 #0A0920 #181750 #262580 #3532AF

Accessibility & contrast

On white

16.44

#181750 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#181750 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181750

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181750	#FFFFFF	#000000	##FFFFFF
##181750	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002252

Deuteranopia (green-blind)

#001D4F

Tritanopia (blue-blind)

#002631

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #181750;
/* rgb */ color: rgb(24, 23, 80);
/* oklch */ color: oklch(24.9% 0.101 276.9);

Tailwind

colors: {
  custom: {
    50: '#5d5482',
    500: '#181750',
    950: '#000000',
  },
}

SCSS

$custom: #181750;
$custom-light: #5d5482;
$custom-dark: #000000;

JSON

{
  "hex": "#181750",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 80
  },
  "hsl": {
    "h": 241.053,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24885,
    "c": 0.10111,
    "h": 276.9
  },
  "luminance": 0.01386
}

Semantic roles & 50–950 ramp

primary

#181750

secondary

#86873C

accent

#DF49DC

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020A

muted

#79787C

Preview Lab

Preview with #181750

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

Preview Lab → · Contrast checker → · Palette generator →