#121555#121555

#121555 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.6% C 0.113 H 272.5°. Best body text is #FFFFFF at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#121555
RGB	rgb(18, 21, 85)
HSL	hsl(237, 65%, 20%)
HSV	hsv(237, 79%, 33%)
CMYK	cmyk(78.8%, 75.3%, 0%, 66.7%)
CIE-LAB	lab(11.42, 23.37, -38.98)
CIE-LCH	lch(11.42, 45.45, 300.95°)
OKLab	oklab(24.61% 0.0049 -0.1127)
OKLCH	oklch(24.61% 0.113 272.5)
XYZ	xyz(2.1568, 1.3206, 8.7338)
Luminance	0.0132 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121555 #555212

analogous

#123755 #121555 #301255

triadic

#121555 #551215 #155512

tetradic

#121555 #551237 #555212 #125530

square

#121555 #551237 #555212 #125530

split-complementary

#121555 #553012 #375512

monochromatic

#050619 #070922 #121555 #1D2188 #272EBA

Accessibility & contrast

On white

16.61

#121555 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121555 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121555

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121555	#FFFFFF	#000000	##FFFFFF
##121555	1.00	16.61	1.26	16.61
#FFFFFF	16.61	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002257

Deuteranopia (green-blind)

#001B54

Tritanopia (blue-blind)

#002733

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121555;
/* rgb */ color: rgb(18, 21, 85);
/* oklch */ color: oklch(24.6% 0.113 272.5);

Tailwind

colors: {
  custom: {
    50: '#5c5286',
    500: '#121555',
    950: '#000000',
  },
}

SCSS

$custom: #121555;
$custom-light: #5c5286;
$custom-dark: #000000;

JSON

{
  "hex": "#121555",
  "rgb": {
    "r": 18,
    "g": 21,
    "b": 85
  },
  "hsl": {
    "h": 237.313,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.24605,
    "c": 0.11285,
    "h": 272.5
  },
  "luminance": 0.01321
}

Semantic roles & 50–950 ramp

primary

#121555

secondary

#8E8A35

accent

#E040E8

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #121555

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

Preview Lab → · Contrast checker → · Palette generator →