#121B54#121B54

#121B54 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.103 H 270.3°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#121B54
RGB	rgb(18, 27, 84)
HSL	hsl(232, 65%, 20%)
HSV	hsv(232, 79%, 33%)
CMYK	cmyk(78.6%, 67.9%, 0%, 67.1%)
CIE-LAB	lab(12.94, 18.65, -35.81)
CIE-LCH	lch(12.94, 40.38, 297.51°)
OKLab	oklab(25.68% 0.0006 -0.1034)
OKLCH	oklch(25.68% 0.103 270.3)
XYZ	xyz(2.2411, 1.5523, 8.5673)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B54 #544B12

analogous

#123C54 #121B54 #2A1254

triadic

#121B54 #54121B #1B5412

tetradic

#121B54 #54123C #544B12 #12542A

square

#121B54 #54123C #544B12 #12542A

split-complementary

#121B54 #542A12 #3C5412

monochromatic

#050819 #070B22 #121B54 #1D2B86 #283BB9

Accessibility & contrast

On white

16.02

#121B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#121B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B54

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B54	#FFFFFF	#000000	##FFFFFF
##121B54	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002556

Deuteranopia (green-blind)

#001E53

Tritanopia (blue-blind)

#002A34

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121b54;
/* rgb */ color: rgb(18, 27, 84);
/* oklch */ color: oklch(25.7% 0.103 270.3);

Tailwind

colors: {
  custom: {
    50: '#5b5785',
    500: '#121b54',
    950: '#000000',
  },
}

SCSS

$custom: #121b54;
$custom-light: #5b5785;
$custom-dark: #000000;

JSON

{
  "hex": "#121b54",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 84
  },
  "hsl": {
    "h": 231.818,
    "s": 64.706,
    "l": 20
  },
  "oklch": {
    "l": 0.25681,
    "c": 0.10343,
    "h": 270.3
  },
  "luminance": 0.01553
}

Semantic roles & 50–950 ramp

primary

#121B54

secondary

#8D8135

accent

#D140E8

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #121B54

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

Preview Lab → · Contrast checker → · Palette generator →