#121848#121848

#121848 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.8% C 0.089 H 272.3°. Best body text is #FFFFFF at 16.80:1 contrast (WCAG AA passes).

Color values

HEX	#121848
RGB	rgb(18, 24, 72)
HSL	hsl(233, 60%, 18%)
HSV	hsv(233, 75%, 28%)
CMYK	cmyk(75%, 66.7%, 0%, 71.8%)
CIE-LAB	lab(10.92, 15.89, -30.86)
CIE-LCH	lch(10.92, 34.71, 297.24°)
OKLab	oklab(23.83% 0.0036 -0.0889)
OKLCH	oklch(23.83% 0.089 272.3)
XYZ	xyz(1.7454, 1.2496, 6.2788)
Luminance	0.0125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121848 #484212

analogous

#123348 #121848 #271248

triadic

#121848 #481218 #184812

tetradic

#121848 #481233 #484212 #124827

square

#121848 #481233 #484212 #124827

split-complementary

#121848 #482712 #334812

monochromatic

#060818 #060818 #121848 #1E2879 #2A39AA

Accessibility & contrast

On white

16.80

#121848 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#121848 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121848

16.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121848	#FFFFFF	#000000	##FFFFFF
##121848	1.00	16.80	1.25	16.80
#FFFFFF	16.80	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00204A

Deuteranopia (green-blind)

#001B47

Tritanopia (blue-blind)

#00242D

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121848;
/* rgb */ color: rgb(18, 24, 72);
/* oklch */ color: oklch(23.8% 0.089 272.3);

Tailwind

colors: {
  custom: {
    50: '#58547b',
    500: '#121848',
    950: '#000000',
  },
}

SCSS

$custom: #121848;
$custom-light: #58547b;
$custom-dark: #000000;

JSON

{
  "hex": "#121848",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 72
  },
  "hsl": {
    "h": 233.333,
    "s": 60,
    "l": 17.647
  },
  "oklch": {
    "l": 0.23832,
    "c": 0.089,
    "h": 272.3
  },
  "luminance": 0.0125
}

Semantic roles & 50–950 ramp

primary

#121848

secondary

#817935

accent

#D245E3

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#040209

muted

#79787B

Preview Lab

Preview with #121848

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

Preview Lab → · Contrast checker → · Palette generator →