#121B2D#121B2D

#121B2D is a very dark, muted blue. Relative luminance 0.011; OKLCH L 22.3% C 0.038 H 263.4°. Best body text is #FFFFFF at 17.21:1 contrast (WCAG AA passes).

Color values

HEX	#121B2D
RGB	rgb(18, 27, 45)
HSL	hsl(220, 43%, 12%)
HSV	hsv(220, 60%, 18%)
CMYK	cmyk(60%, 40%, 0%, 82.4%)
CIE-LAB	lab(9.81, 2.34, -13.35)
CIE-LCH	lch(9.81, 13.56, 279.95°)
OKLab	oklab(22.33% -0.0044 -0.0375)
OKLCH	oklch(22.33% 0.038 263.4)
XYZ	xyz(1.1149, 1.1019, 2.6360)
Luminance	0.0110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B2D #2D2412

analogous

#12292D #121B2D #17122D

triadic

#121B2D #2D121B #1B2D12

tetradic

#121B2D #2D1229 #2D2412 #122D17

square

#121B2D #2D1229 #2D2412 #122D17

split-complementary

#121B2D #2D1712 #292D12

monochromatic

#090D16 #090D16 #121B2D #233559 #354F84

Accessibility & contrast

On white

17.21

#121B2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#121B2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B2D

17.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B2D	#FFFFFF	#000000	##FFFFFF
##121B2D	1.00	17.21	1.22	17.21
#FFFFFF	17.21	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#141C2E

Deuteranopia (green-blind)

#111A2D

Tritanopia (blue-blind)

#071F21

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #121b2d;
/* rgb */ color: rgb(18, 27, 45);
/* oklch */ color: oklch(22.3% 0.038 263.4);

Tailwind

colors: {
  custom: {
    50: '#525766',
    500: '#121b2d',
    950: '#000000',
  },
}

SCSS

$custom: #121b2d;
$custom-light: #525766;
$custom-dark: #000000;

JSON

{
  "hex": "#121b2d",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 45
  },
  "hsl": {
    "h": 220,
    "s": 42.857,
    "l": 12.353
  },
  "oklch": {
    "l": 0.22326,
    "c": 0.03779,
    "h": 263.4
  },
  "luminance": 0.01102
}

Semantic roles & 50–950 ramp

primary

#121B2D

secondary

#655536

accent

#A955D3

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020305

muted

#78787A

Preview Lab

Preview with #121B2D

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

Preview Lab → · Contrast checker → · Palette generator →