#121C4C#121C4C

#121C4C is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.1% C 0.090 H 269.8°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#121C4C
RGB	rgb(18, 28, 76)
HSL	hsl(230, 62%, 18%)
HSV	hsv(230, 76%, 30%)
CMYK	cmyk(76.3%, 63.2%, 0%, 70.2%)
CIE-LAB	lab(12.48, 14.54, -31.08)
CIE-LCH	lch(12.48, 34.31, 295.07°)
OKLab	oklab(25.11% -0.0002 -0.0895)
OKLCH	oklch(25.11% 0.09 269.8)
XYZ	xyz(1.9688, 1.4807, 7.0181)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C4C #4C4212

analogous

#12394C #121C4C #25124C

triadic

#121C4C #4C121C #1C4C12

tetradic

#121C4C #4C1239 #4C4212 #124C25

square

#121C4C #4C1239 #4C4212 #124C25

split-complementary

#121C4C #4C2512 #394C12

monochromatic

#060919 #060A1B #121C4C #1E2E7D #2940AF

Accessibility & contrast

On white

16.20

#121C4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121C4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C4C

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C4C	#FFFFFF	#000000	##FFFFFF
##121C4C	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234E

Deuteranopia (green-blind)

#001E4B

Tritanopia (blue-blind)

#002830

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #121c4c;
/* rgb */ color: rgb(18, 28, 76);
/* oklch */ color: oklch(25.1% 0.090 269.8);

Tailwind

colors: {
  custom: {
    50: '#59577e',
    500: '#121c4c',
    950: '#000000',
  },
}

SCSS

$custom: #121c4c;
$custom-light: #59577e;
$custom-dark: #000000;

JSON

{
  "hex": "#121c4c",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 76
  },
  "hsl": {
    "h": 229.655,
    "s": 61.702,
    "l": 18.431
  },
  "oklch": {
    "l": 0.25112,
    "c": 0.08952,
    "h": 269.8
  },
  "luminance": 0.01481
}

Semantic roles & 50–950 ramp

primary

#121C4C

secondary

#857735

accent

#C943E5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #121C4C

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

Preview Lab → · Contrast checker → · Palette generator →