#12172F#12172F

#12172F is a very dark, muted blue. Relative luminance 0.009; OKLCH L 21.4% C 0.048 H 272.9°. Best body text is #FFFFFF at 17.66:1 contrast (WCAG AA passes).

Color values

HEX	#12172F
RGB	rgb(18, 23, 47)
HSL	hsl(230, 45%, 13%)
HSV	hsv(230, 62%, 18%)
CMYK	cmyk(61.7%, 51.1%, 0%, 81.6%)
CIE-LAB	lab(8.54, 6.25, -16.83)
CIE-LCH	lch(8.54, 17.95, 290.37°)
OKLab	oklab(21.38% 0.0024 -0.0477)
OKLCH	oklch(21.38% 0.048 272.9)
XYZ	xyz(1.0688, 0.9466, 2.8152)
Luminance	0.0095 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12172F #2F2A12

analogous

#12252F #12172F #1B122F

triadic

#12172F #2F1217 #172F12

tetradic

#12172F #2F1225 #2F2A12 #122F1B

square

#12172F #2F1225 #2F2A12 #122F1B

split-complementary

#12172F #2F1B12 #252F12

monochromatic

#080B16 #080B16 #12172F #232D5B #344288

Accessibility & contrast

On white

17.66

#12172F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.19

#12172F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12172F

17.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12172F	#FFFFFF	#000000	##FFFFFF
##12172F	1.00	17.66	1.19	17.66
#FFFFFF	17.66	1.00	21.00	1.00
#000000	1.19	21.00	1.00	21.00
##FFFFFF	17.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D1A30

Deuteranopia (green-blind)

#0A172E

Tritanopia (blue-blind)

#061C20

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #12172f;
/* rgb */ color: rgb(18, 23, 47);
/* oklch */ color: oklch(21.4% 0.048 272.9);

Tailwind

colors: {
  custom: {
    50: '#525367',
    500: '#12172f',
    950: '#000000',
  },
}

SCSS

$custom: #12172f;
$custom-light: #525367;
$custom-dark: #000000;

JSON

{
  "hex": "#12172f",
  "rgb": {
    "r": 18,
    "g": 23,
    "b": 47
  },
  "hsl": {
    "h": 229.655,
    "s": 44.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.21384,
    "c": 0.04778,
    "h": 272.9
  },
  "luminance": 0.00947
}

Semantic roles & 50–950 ramp

primary

#12172F

secondary

#675E36

accent

#BE53D4

background

#F4F4F6

surface

#E7E7EB

border

#C3C3C6

text

#020206

muted

#78787A

Preview Lab

Preview with #12172F

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

Preview Lab → · Contrast checker → · Palette generator →