#180D50#180D50

#180D50 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.2% C 0.114 H 280.3°. Best body text is #FFFFFF at 17.32:1 contrast (WCAG AA passes).

Color values

HEX	#180D50
RGB	rgb(24, 13, 80)
HSL	hsl(250, 72%, 18%)
HSV	hsv(250, 84%, 31%)
CMYK	cmyk(70%, 83.7%, 0%, 68.6%)
CIE-LAB	lab(9.49, 27.43, -38.72)
CIE-LCH	lch(9.49, 47.45, 305.31°)
OKLab	oklab(23.19% 0.0203 -0.1117)
OKLCH	oklch(23.19% 0.114 280.3)
XYZ	xyz(1.9681, 1.0611, 7.6890)
Luminance	0.0106 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180D50 #45500D

analogous

#0D2350 #180D50 #390D50

triadic

#180D50 #50180D #0D5018

tetradic

#180D50 #500D23 #45500D #0D5039

square

#180D50 #500D23 #45500D #0D5039

split-complementary

#180D50 #50390D #23500D

monochromatic

#08041A #08041B #180D50 #281685 #381EB9

Accessibility & contrast

On white

17.32

#180D50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.21

#180D50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180D50

17.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180D50	#FFFFFF	#000000	##FFFFFF
##180D50	1.00	17.32	1.21	17.32
#FFFFFF	17.32	1.00	21.00	1.00
#000000	1.21	21.00	1.00	21.00
##FFFFFF	17.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001D52

Deuteranopia (green-blind)

#00184F

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#1A1A1A

Design tokens & code

CSS

--color: #180d50;
/* rgb */ color: rgb(24, 13, 80);
/* oklch */ color: oklch(23.2% 0.114 280.3);

Tailwind

colors: {
  custom: {
    50: '#5e4d82',
    500: '#180d50',
    950: '#000000',
  },
}

SCSS

$custom: #180d50;
$custom-light: #5e4d82;
$custom-dark: #000000;

JSON

{
  "hex": "#180d50",
  "rgb": {
    "r": 24,
    "g": 13,
    "b": 80
  },
  "hsl": {
    "h": 249.851,
    "s": 72.043,
    "l": 18.235
  },
  "oklch": {
    "l": 0.23188,
    "c": 0.11358,
    "h": 280.3
  },
  "luminance": 0.01061
}

Semantic roles & 50–950 ramp

primary

#180D50

secondary

#7C8B2E

accent

#EF39D1

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010A

muted

#79777C

Preview Lab

Preview with #180D50

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

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