#121D2F#121D2F

#121D2F is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.0% C 0.039 H 259.9°. Best body text is #FFFFFF at 16.90:1 contrast (WCAG AA passes).

Color values

HEX	#121D2F
RGB	rgb(18, 29, 47)
HSL	hsl(217, 45%, 13%)
HSV	hsv(217, 62%, 18%)
CMYK	cmyk(61.7%, 38.3%, 0%, 81.6%)
CIE-LAB	lab(10.65, 1.61, -13.50)
CIE-LCH	lch(10.65, 13.60, 276.82°)
OKLab	oklab(23.02% -0.0068 -0.038)
OKLCH	oklch(23.02% 0.039 259.9)
XYZ	xyz(1.2017, 1.2125, 2.8595)
Luminance	0.0121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D2F #2F2412

analogous

#122B2F #121D2F #15122F

triadic

#121D2F #2F121D #1D2F12

tetradic

#121D2F #2F122B #2F2412 #122F15

square

#121D2F #2F122B #2F2412 #122F15

split-complementary

#121D2F #2F1512 #2B2F12

monochromatic

#080E16 #080E16 #121D2F #23385B #345488

Accessibility & contrast

On white

16.90

#121D2F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121D2F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D2F

16.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D2F	#FFFFFF	#000000	##FFFFFF
##121D2F	1.00	16.90	1.24	16.90
#FFFFFF	16.90	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#161E30

Deuteranopia (green-blind)

#131C2F

Tritanopia (blue-blind)

#052123

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121d2f;
/* rgb */ color: rgb(18, 29, 47);
/* oklch */ color: oklch(23.0% 0.039 259.9);

Tailwind

colors: {
  custom: {
    50: '#525867',
    500: '#121d2f',
    950: '#000000',
  },
}

SCSS

$custom: #121d2f;
$custom-light: #525867;
$custom-dark: #000000;

JSON

{
  "hex": "#121d2f",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 47
  },
  "hsl": {
    "h": 217.241,
    "s": 44.615,
    "l": 12.745
  },
  "oklch": {
    "l": 0.23016,
    "c": 0.03856,
    "h": 259.9
  },
  "luminance": 0.01213
}

Semantic roles & 50–950 ramp

primary

#121D2F

secondary

#675436

accent

#A353D4

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020306

muted

#78787A

Preview Lab

Preview with #121D2F

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

Preview Lab → · Contrast checker → · Palette generator →