#12172D#12172D

#12172D is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.2% C 0.044 H 272.5°. Best body text is #FFFFFF at 17.70:1 contrast (WCAG AA passes).

Color values

HEX	#12172D
RGB	rgb(18, 23, 45)
HSL	hsl(229, 43%, 12%)
HSV	hsv(229, 60%, 18%)
CMYK	cmyk(60%, 48.9%, 0%, 82.4%)
CIE-LAB	lab(8.40, 5.45, -15.58)
CIE-LCH	lch(8.40, 16.50, 289.27°)
OKLab	oklab(21.23% 0.0019 -0.044)
OKLCH	oklch(21.23% 0.044 272.5)
XYZ	xyz(1.0294, 0.9308, 2.6075)
Luminance	0.0093 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12172D #2D2812

analogous

#12252D #12172D #1B122D

triadic

#12172D #2D1217 #172D12

tetradic

#12172D #2D1225 #2D2812 #122D1B

square

#12172D #2D1225 #2D2812 #122D1B

split-complementary

#12172D #2D1B12 #252D12

monochromatic

#090B16 #090B16 #12172D #232D59 #354484

Accessibility & contrast

On white

17.70

#12172D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#12172D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12172D

17.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12172D	#FFFFFF	#000000	##FFFFFF
##12172D	1.00	17.70	1.19	17.70
#FFFFFF	17.70	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E1A2E

Deuteranopia (green-blind)

#0C172D

Tritanopia (blue-blind)

#071C1F

Achromatopsia (no color)

#181818

Design tokens & code

CSS

--color: #12172d;
/* rgb */ color: rgb(18, 23, 45);
/* oklch */ color: oklch(21.2% 0.044 272.5);

Tailwind

colors: {
  custom: {
    50: '#525366',
    500: '#12172d',
    950: '#000000',
  },
}

SCSS

$custom: #12172d;
$custom-light: #525366;
$custom-dark: #000000;

JSON

{
  "hex": "#12172d",
  "rgb": {
    "r": 18,
    "g": 23,
    "b": 45
  },
  "hsl": {
    "h": 228.889,
    "s": 42.857,
    "l": 12.353
  },
  "oklch": {
    "l": 0.21234,
    "c": 0.04409,
    "h": 272.5
  },
  "luminance": 0.00931
}

Semantic roles & 50–950 ramp

primary

#12172D

secondary

#655C36

accent

#BB55D3

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #12172D

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

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