#121C4A#121C4A

#121C4A is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 24.9% C 0.086 H 269.8°. Best body text is #FFFFFF at 16.27:1 contrast (WCAG AA passes).

Color values

HEX	#121C4A
RGB	rgb(18, 28, 74)
HSL	hsl(229, 61%, 18%)
HSV	hsv(229, 76%, 29%)
CMYK	cmyk(75.7%, 62.2%, 0%, 71%)
CIE-LAB	lab(12.31, 13.69, -29.99)
CIE-LCH	lch(12.31, 32.96, 294.54°)
OKLab	oklab(24.92% -0.0003 -0.0863)
OKLCH	oklch(24.92% 0.086 269.8)
XYZ	xyz(1.9003, 1.4533, 6.6576)
Luminance	0.0145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.28

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C4A #4A4012

analogous

#12384A #121C4A #24124A

triadic

#121C4A #4A121C #1C4A12

tetradic

#121C4A #4A1238 #4A4012 #124A24

square

#121C4A #4A1238 #4A4012 #124A24

split-complementary

#121C4A #4A2412 #384A12

monochromatic

#060919 #060919 #121C4A #1E2F7B #2A41AC

Accessibility & contrast

On white

16.27

#121C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#121C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C4A

16.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C4A	#FFFFFF	#000000	##FFFFFF
##121C4A	1.00	16.27	1.29	16.27
#FFFFFF	16.27	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234C

Deuteranopia (green-blind)

#001E49

Tritanopia (blue-blind)

#00272F

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #121c4a;
/* rgb */ color: rgb(18, 28, 74);
/* oklch */ color: oklch(24.9% 0.086 269.8);

Tailwind

colors: {
  custom: {
    50: '#58577d',
    500: '#121c4a',
    950: '#000000',
  },
}

SCSS

$custom: #121c4a;
$custom-light: #58577d;
$custom-dark: #000000;

JSON

{
  "hex": "#121c4a",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 74
  },
  "hsl": {
    "h": 229.286,
    "s": 60.87,
    "l": 18.039
  },
  "oklch": {
    "l": 0.24924,
    "c": 0.08631,
    "h": 269.8
  },
  "luminance": 0.01454
}

Semantic roles & 50–950 ramp

primary

#121C4A

secondary

#837535

accent

#C744E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #121C4A

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

Preview Lab → · Contrast checker → · Palette generator →