#121D53#121D53

#121D53 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.0% C 0.099 H 269.4°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#121D53
RGB	rgb(18, 29, 83)
HSL	hsl(230, 64%, 20%)
HSV	hsv(230, 78%, 33%)
CMYK	cmyk(78.3%, 65.1%, 0%, 67.5%)
CIE-LAB	lab(13.42, 16.74, -34.34)
CIE-LCH	lch(13.42, 38.20, 295.99°)
OKLab	oklab(26.01% -0.001 -0.0991)
OKLCH	oklch(26.01% 0.099 269.4)
XYZ	xyz(2.2496, 1.6316, 8.3783)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D53 #534812

analogous

#123E53 #121D53 #281253

triadic

#121D53 #53121D #1D5312

tetradic

#121D53 #53123E #534812 #125328

square

#121D53 #53123E #534812 #125328

split-complementary

#121D53 #532812 #3E5312

monochromatic

#050919 #070B21 #121D53 #1D2F85 #2840B8

Accessibility & contrast

On white

15.83

#121D53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#121D53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D53

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D53	#FFFFFF	#000000	##FFFFFF
##121D53	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002555

Deuteranopia (green-blind)

#001F52

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121d53;
/* rgb */ color: rgb(18, 29, 83);
/* oklch */ color: oklch(26.0% 0.099 269.4);

Tailwind

colors: {
  custom: {
    50: '#5b5884',
    500: '#121d53',
    950: '#000000',
  },
}

SCSS

$custom: #121d53;
$custom-light: #5b5884;
$custom-dark: #000000;

JSON

{
  "hex": "#121d53",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 83
  },
  "hsl": {
    "h": 229.846,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.2601,
    "c": 0.09911,
    "h": 269.4
  },
  "luminance": 0.01632
}

Semantic roles & 50–950 ramp

primary

#121D53

secondary

#8C7D35

accent

#CB40E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #121D53

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

Preview Lab → · Contrast checker → · Palette generator →