#121B48#121B48

#121B48 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.5% C 0.085 H 270.4°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#121B48
RGB	rgb(18, 27, 72)
HSL	hsl(230, 60%, 18%)
HSV	hsv(230, 75%, 28%)
CMYK	cmyk(75%, 62.5%, 0%, 71.8%)
CIE-LAB	lab(11.83, 13.60, -29.38)
CIE-LCH	lch(11.83, 32.38, 294.84°)
OKLab	oklab(24.51% 0.0006 -0.0846)
OKLCH	oklch(24.51% 0.085 270.4)
XYZ	xyz(1.8107, 1.3802, 6.3006)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B48 #483F12

analogous

#123648 #121B48 #241248

triadic

#121B48 #48121B #1B4812

tetradic

#121B48 #481236 #483F12 #124824

square

#121B48 #481236 #483F12 #124824

split-complementary

#121B48 #482412 #364812

monochromatic

#060918 #060918 #121B48 #1E2D79 #2A40AA

Accessibility & contrast

On white

16.46

#121B48 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121B48 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B48

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B48	#FFFFFF	#000000	##FFFFFF
##121B48	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00224A

Deuteranopia (green-blind)

#001D47

Tritanopia (blue-blind)

#00262E

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121b48;
/* rgb */ color: rgb(18, 27, 72);
/* oklch */ color: oklch(24.5% 0.085 270.4);

Tailwind

colors: {
  custom: {
    50: '#58577b',
    500: '#121b48',
    950: '#000000',
  },
}

SCSS

$custom: #121b48;
$custom-light: #58577b;
$custom-dark: #000000;

JSON

{
  "hex": "#121b48",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 72
  },
  "hsl": {
    "h": 230,
    "s": 60,
    "l": 17.647
  },
  "oklch": {
    "l": 0.24507,
    "c": 0.08456,
    "h": 270.4
  },
  "luminance": 0.0138
}

Semantic roles & 50–950 ramp

primary

#121B48

secondary

#817435

accent

#C945E3

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #121B48

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

Preview Lab → · Contrast checker → · Palette generator →