#181D65#181D65

#181D65 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.124 H 272.3°. Best body text is #FFFFFF at 14.97:1 contrast (WCAG AA passes).

Color values

HEX	#181D65
RGB	rgb(24, 29, 101)
HSL	hsl(236, 62%, 25%)
HSV	hsv(236, 76%, 40%)
CMYK	cmyk(76.2%, 71.3%, 0%, 60.4%)
CIE-LAB	lab(15.55, 24.85, -42.88)
CIE-LCH	lch(15.55, 49.56, 300.09°)
OKLab	oklab(28.22% 0.005 -0.124)
OKLCH	oklch(28.22% 0.124 272.3)
XYZ	xyz(3.1642, 2.0122, 12.5310)
Luminance	0.0201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181D65 #656018

analogous

#184465 #181D65 #3A1865

triadic

#181D65 #65181D #1D6518

tetradic

#181D65 #651844 #656018 #18653A

square

#181D65 #651844 #656018 #18653A

split-complementary

#181D65 #653A18 #446518

monochromatic

#060719 #0C0F34 #181D65 #242B96 #3039C8

Accessibility & contrast

On white

14.97

#181D65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181D65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181D65

14.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181D65	#FFFFFF	#000000	##FFFFFF
##181D65	1.00	14.97	1.40	14.97
#FFFFFF	14.97	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A67

Deuteranopia (green-blind)

#002364

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181d65;
/* rgb */ color: rgb(24, 29, 101);
/* oklch */ color: oklch(28.2% 0.124 272.3);

Tailwind

colors: {
  custom: {
    50: '#625992',
    500: '#181d65',
    950: '#000000',
  },
}

SCSS

$custom: #181d65;
$custom-light: #625992;
$custom-dark: #000000;

JSON

{
  "hex": "#181d65",
  "rgb": {
    "r": 24,
    "g": 29,
    "b": 101
  },
  "hsl": {
    "h": 236.104,
    "s": 61.6,
    "l": 24.51
  },
  "oklch": {
    "l": 0.28216,
    "c": 0.12408,
    "h": 272.3
  },
  "luminance": 0.02013
}

Semantic roles & 50–950 ramp

primary

#181D65

secondary

#9B953E

accent

#DA43E5

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181D65

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

Preview Lab → · Contrast checker → · Palette generator →