#121C73#121C73

#121C73 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.146 H 268.9°. Best body text is #FFFFFF at 14.59:1 contrast (WCAG AA passes).

Color values

HEX	#121C73
RGB	rgb(18, 28, 115)
HSL	hsl(234, 73%, 26%)
HSV	hsv(234, 84%, 45%)
CMYK	cmyk(84.3%, 75.7%, 0%, 54.9%)
CIE-LAB	lab(16.49, 30.31, -50.49)
CIE-LCH	lch(16.49, 58.89, 300.98°)
OKLab	oklab(29.26% -0.0029 -0.1463)
OKLCH	oklch(29.26% 0.146 268.9)
XYZ	xyz(3.7582, 2.1965, 16.4422)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C73 #736912

analogous

#124C73 #121C73 #381273

triadic

#121C73 #73121C #1C7312

tetradic

#121C73 #73124C #736912 #127338

square

#121C73 #73124C #736912 #127338

split-complementary

#121C73 #733812 #4C7312

monochromatic

#04061A #0A0F3E #121C73 #1A29A8 #2336DD

Accessibility & contrast

On white

14.59

#121C73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#121C73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C73

14.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C73	#FFFFFF	#000000	##FFFFFF
##121C73	1.00	14.59	1.44	14.59
#FFFFFF	14.59	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E76

Deuteranopia (green-blind)

#002471

Tritanopia (blue-blind)

#003545

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #121c73;
/* rgb */ color: rgb(18, 28, 115);
/* oklch */ color: oklch(29.3% 0.146 268.9);

Tailwind

colors: {
  custom: {
    50: '#64599c',
    500: '#121c73',
    950: '#000000',
  },
}

SCSS

$custom: #121c73;
$custom-light: #64599c;
$custom-dark: #000000;

JSON

{
  "hex": "#121c73",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 115
  },
  "hsl": {
    "h": 233.814,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29255,
    "c": 0.14633,
    "h": 268.9
  },
  "luminance": 0.02197
}

Semantic roles & 50–950 ramp

primary

#121C73

secondary

#AA9E37

accent

#DD38F0

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #121C73

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

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