#121C5C#121C5C

#121C5C is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.7% C 0.114 H 269.7°. Best body text is #FFFFFF at 15.60:1 contrast (WCAG AA passes).

Color values

HEX	#121C5C
RGB	rgb(18, 28, 92)
HSL	hsl(232, 67%, 22%)
HSV	hsv(232, 80%, 36%)
CMYK	cmyk(80.4%, 69.6%, 0%, 63.9%)
CIE-LAB	lab(14.01, 21.22, -39.45)
CIE-LCH	lch(14.01, 44.79, 298.28°)
OKLab	oklab(26.71% -0.0005 -0.1141)
OKLCH	oklch(26.71% 0.114 269.7)
XYZ	xyz(2.5958, 1.7315, 10.3206)
Luminance	0.0173 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C5C #5C5212

analogous

#12415C #121C5C #2D125C

triadic

#121C5C #5C121C #1C5C12

tetradic

#121C5C #5C1241 #5C5212 #125C2D

square

#121C5C #5C1241 #5C5212 #125C2D

split-complementary

#121C5C #5C2D12 #415C12

monochromatic

#05081A #080C29 #121C5C #1C2C8F #263BC2

Accessibility & contrast

On white

15.60

#121C5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#121C5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C5C

15.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C5C	#FFFFFF	#000000	##FFFFFF
##121C5C	1.00	15.60	1.35	15.60
#FFFFFF	15.60	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00275E

Deuteranopia (green-blind)

#00205B

Tritanopia (blue-blind)

#002D39

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #121c5c;
/* rgb */ color: rgb(18, 28, 92);
/* oklch */ color: oklch(26.7% 0.114 269.7);

Tailwind

colors: {
  custom: {
    50: '#5d588b',
    500: '#121c5c',
    950: '#000000',
  },
}

SCSS

$custom: #121c5c;
$custom-light: #5d588b;
$custom-dark: #000000;

JSON

{
  "hex": "#121c5c",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 92
  },
  "hsl": {
    "h": 231.892,
    "s": 67.273,
    "l": 21.569
  },
  "oklch": {
    "l": 0.26714,
    "c": 0.11408,
    "h": 269.7
  },
  "luminance": 0.01732
}

Semantic roles & 50–950 ramp

primary

#121C5C

secondary

#948835

accent

#D33EEA

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #121C5C

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

Preview Lab → · Contrast checker → · Palette generator →