#121055#121055

#121055 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.119 H 273.8°. Best body text is #FFFFFF at 17.06:1 contrast (WCAG AA passes).

Color values

HEX	#121055
RGB	rgb(18, 16, 85)
HSL	hsl(242, 68%, 20%)
HSV	hsv(242, 81%, 33%)
CMYK	cmyk(78.8%, 81.2%, 0%, 66.7%)
CIE-LAB	lab(10.22, 26.70, -40.96)
CIE-LCH	lch(10.22, 48.89, 303.10°)
OKLab	oklab(23.75% 0.0079 -0.1185)
OKLCH	oklch(23.75% 0.119 273.8)
XYZ	xyz(2.0739, 1.1548, 8.7062)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121055 #535510

analogous

#103155 #121055 #351055

triadic

#121055 #551210 #105512

tetradic

#121055 #551031 #535510 #105535

square

#121055 #551031 #535510 #105535

split-complementary

#121055 #553510 #315510

monochromatic

#05051A #070621 #121055 #1D1A89 #2823BC

Accessibility & contrast

On white

17.06

#121055 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#121055 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121055

17.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121055	#FFFFFF	#000000	##FFFFFF
##121055	1.00	17.06	1.23	17.06
#FFFFFF	17.06	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F57

Deuteranopia (green-blind)

#001954

Tritanopia (blue-blind)

#002431

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121055;
/* rgb */ color: rgb(18, 16, 85);
/* oklch */ color: oklch(23.7% 0.119 273.8);

Tailwind

colors: {
  custom: {
    50: '#5d4f86',
    500: '#121055',
    950: '#000000',
  },
}

SCSS

$custom: #121055;
$custom-light: #5d4f86;
$custom-dark: #000000;

JSON

{
  "hex": "#121055",
  "rgb": {
    "r": 18,
    "g": 16,
    "b": 85
  },
  "hsl": {
    "h": 241.739,
    "s": 68.317,
    "l": 19.804
  },
  "oklch": {
    "l": 0.23748,
    "c": 0.11874,
    "h": 273.8
  },
  "luminance": 0.01155
}

Semantic roles & 50–950 ramp

primary

#121055

secondary

#8C8F32

accent

#EB3DE6

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #121055

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

Preview Lab → · Contrast checker → · Palette generator →