#121D4C#121D4C

#121D4C is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.3% C 0.088 H 269.2°. Best body text is #FFFFFF at 16.08:1 contrast (WCAG AA passes).

Color values

HEX	#121D4C
RGB	rgb(18, 29, 76)
HSL	hsl(229, 62%, 18%)
HSV	hsv(229, 76%, 30%)
CMYK	cmyk(76.3%, 61.8%, 0%, 70.2%)
CIE-LAB	lab(12.79, 13.78, -30.58)
CIE-LCH	lch(12.79, 33.54, 294.25°)
OKLab	oklab(25.34% -0.0012 -0.088)
OKLCH	oklch(25.34% 0.088 269.2)
XYZ	xyz(1.9929, 1.5289, 7.0262)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.62

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D4C #4C4112

analogous

#123A4C #121D4C #24124C

triadic

#121D4C #4C121D #1D4C12

tetradic

#121D4C #4C123A #4C4112 #124C24

square

#121D4C #4C123A #4C4112 #124C24

split-complementary

#121D4C #4C2412 #3A4C12

monochromatic

#060919 #060A1B #121D4C #1E307D #2943AF

Accessibility & contrast

On white

16.08

#121D4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#121D4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D4C

16.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D4C	#FFFFFF	#000000	##FFFFFF
##121D4C	1.00	16.08	1.31	16.08
#FFFFFF	16.08	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00244E

Deuteranopia (green-blind)

#001F4B

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121d4c;
/* rgb */ color: rgb(18, 29, 76);
/* oklch */ color: oklch(25.3% 0.088 269.2);

Tailwind

colors: {
  custom: {
    50: '#59587e',
    500: '#121d4c',
    950: '#000000',
  },
}

SCSS

$custom: #121d4c;
$custom-light: #59587e;
$custom-dark: #000000;

JSON

{
  "hex": "#121d4c",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 76
  },
  "hsl": {
    "h": 228.621,
    "s": 61.702,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25341,
    "c": 0.08806,
    "h": 269.2
  },
  "luminance": 0.01529
}

Semantic roles & 50–950 ramp

primary

#121D4C

secondary

#857635

accent

#C643E5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #121D4C

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

Preview Lab → · Contrast checker → · Palette generator →