#121B47#121B47

#121B47 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.083 H 270.4°. Best body text is #FFFFFF at 16.49:1 contrast (WCAG AA passes).

Color values

HEX	#121B47
RGB	rgb(18, 27, 71)
HSL	hsl(230, 60%, 17%)
HSV	hsv(230, 75%, 28%)
CMYK	cmyk(74.6%, 62%, 0%, 72.2%)
CIE-LAB	lab(11.74, 13.18, -28.83)
CIE-LCH	lch(11.74, 31.70, 294.57°)
OKLab	oklab(24.41% 0.0005 -0.0829)
OKLCH	oklch(24.41% 0.083 270.4)
XYZ	xyz(1.7783, 1.3672, 6.1302)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B47 #473E12

analogous

#123647 #121B47 #231247

triadic

#121B47 #47121B #1B4712

tetradic

#121B47 #471236 #473E12 #124723

square

#121B47 #471236 #473E12 #124723

split-complementary

#121B47 #472312 #364712

monochromatic

#060918 #060918 #121B47 #1E2E78 #2B40A9

Accessibility & contrast

On white

16.49

#121B47 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#121B47 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B47

16.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B47	#FFFFFF	#000000	##FFFFFF
##121B47	1.00	16.49	1.27	16.49
#FFFFFF	16.49	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002149

Deuteranopia (green-blind)

#001D46

Tritanopia (blue-blind)

#00262D

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121b47;
/* rgb */ color: rgb(18, 27, 71);
/* oklch */ color: oklch(24.4% 0.083 270.4);

Tailwind

colors: {
  custom: {
    50: '#58577b',
    500: '#121b47',
    950: '#000000',
  },
}

SCSS

$custom: #121b47;
$custom-light: #58577b;
$custom-dark: #000000;

JSON

{
  "hex": "#121b47",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 71
  },
  "hsl": {
    "h": 229.811,
    "s": 59.551,
    "l": 17.451
  },
  "oklch": {
    "l": 0.24414,
    "c": 0.08293,
    "h": 270.4
  },
  "luminance": 0.01367
}

Semantic roles & 50–950 ramp

primary

#121B47

secondary

#807335

accent

#C845E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #121B47

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

Preview Lab → · Contrast checker → · Palette generator →