#121A53#121A53

#121A53 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.4% C 0.103 H 270.8°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#121A53
RGB	rgb(18, 26, 83)
HSL	hsl(233, 64%, 20%)
HSV	hsv(233, 78%, 33%)
CMYK	cmyk(78.3%, 68.7%, 0%, 67.5%)
CIE-LAB	lab(12.56, 18.97, -35.76)
CIE-LCH	lch(12.56, 40.48, 297.95°)
OKLab	oklab(25.37% 0.0014 -0.1033)
OKLCH	oklch(25.37% 0.103 270.8)
XYZ	xyz(2.1797, 1.4917, 8.3550)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A53 #534B12

analogous

#123B53 #121A53 #2A1253

triadic

#121A53 #53121A #1A5312

tetradic

#121A53 #53123B #534B12 #12532A

square

#121A53 #53123B #534B12 #12532A

split-complementary

#121A53 #532A12 #3B5312

monochromatic

#050819 #070A21 #121A53 #1D2A85 #283AB8

Accessibility & contrast

On white

16.17

#121A53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121A53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A53

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A53	#FFFFFF	#000000	##FFFFFF
##121A53	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002455

Deuteranopia (green-blind)

#001E52

Tritanopia (blue-blind)

#002933

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121a53;
/* rgb */ color: rgb(18, 26, 83);
/* oklch */ color: oklch(25.4% 0.103 270.8);

Tailwind

colors: {
  custom: {
    50: '#5b5684',
    500: '#121a53',
    950: '#000000',
  },
}

SCSS

$custom: #121a53;
$custom-light: #5b5684;
$custom-dark: #000000;

JSON

{
  "hex": "#121a53",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 83
  },
  "hsl": {
    "h": 232.615,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25369,
    "c": 0.10329,
    "h": 270.8
  },
  "luminance": 0.01492
}

Semantic roles & 50–950 ramp

primary

#121A53

secondary

#8C8135

accent

#D340E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #121A53

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

Preview Lab → · Contrast checker → · Palette generator →