#121851#121851

#121851 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.103 H 271.8°. Best body text is #FFFFFF at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#121851
RGB	rgb(18, 24, 81)
HSL	hsl(234, 64%, 19%)
HSV	hsv(234, 78%, 32%)
CMYK	cmyk(77.8%, 70.4%, 0%, 68.2%)
CIE-LAB	lab(11.79, 19.62, -35.63)
CIE-LCH	lch(11.79, 40.68, 298.83°)
OKLab	oklab(24.75% 0.0032 -0.1029)
OKLCH	oklch(24.75% 0.103 271.8)
XYZ	xyz(2.0608, 1.3757, 7.9399)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121851 #514B12

analogous

#123851 #121851 #2C1251

triadic

#121851 #511218 #185112

tetradic

#121851 #511238 #514B12 #12512C

square

#121851 #511238 #514B12 #12512C

split-complementary

#121851 #512C12 #385112

monochromatic

#060719 #07091F #121851 #1D2783 #2836B5

Accessibility & contrast

On white

16.47

#121851 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121851 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121851

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121851	#FFFFFF	#000000	##FFFFFF
##121851	1.00	16.47	1.28	16.47
#FFFFFF	16.47	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002253

Deuteranopia (green-blind)

#001C50

Tritanopia (blue-blind)

#002732

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121851;
/* rgb */ color: rgb(18, 24, 81);
/* oklch */ color: oklch(24.8% 0.103 271.8);

Tailwind

colors: {
  custom: {
    50: '#5b5482',
    500: '#121851',
    950: '#000000',
  },
}

SCSS

$custom: #121851;
$custom-light: #5b5482;
$custom-dark: #000000;

JSON

{
  "hex": "#121851",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 81
  },
  "hsl": {
    "h": 234.286,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.2475,
    "c": 0.10299,
    "h": 271.8
  },
  "luminance": 0.01376
}

Semantic roles & 50–950 ramp

primary

#121851

secondary

#8A8235

accent

#D741E7

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020A

muted

#79787C

Preview Lab

Preview with #121851

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

Preview Lab → · Contrast checker → · Palette generator →