#121C4D#121C4D

#121C4D is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.2% C 0.091 H 269.9°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#121C4D
RGB	rgb(18, 28, 77)
HSL	hsl(230, 62%, 19%)
HSV	hsv(230, 77%, 30%)
CMYK	cmyk(76.6%, 63.6%, 0%, 69.8%)
CIE-LAB	lab(12.57, 14.96, -31.62)
CIE-LCH	lch(12.57, 34.98, 295.32°)
OKLab	oklab(25.21% -0.0002 -0.0911)
OKLCH	oklch(25.21% 0.091 269.9)
XYZ	xyz(2.0038, 1.4947, 7.2026)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.39

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C4D #4D4312

analogous

#12394D #121C4D #25124D

triadic

#121C4D #4D121C #1C4D12

tetradic

#121C4D #4D1239 #4D4312 #124D25

square

#121C4D #4D1239 #4D4312 #124D25

split-complementary

#121C4D #4D2512 #394D12

monochromatic

#060919 #060A1B #121C4D #1E2E7F #2940B0

Accessibility & contrast

On white

16.17

#121C4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#121C4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C4D

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C4D	#FFFFFF	#000000	##FFFFFF
##121C4D	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00234F

Deuteranopia (green-blind)

#001E4C

Tritanopia (blue-blind)

#002831

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #121c4d;
/* rgb */ color: rgb(18, 28, 77);
/* oklch */ color: oklch(25.2% 0.091 269.9);

Tailwind

colors: {
  custom: {
    50: '#59577f',
    500: '#121c4d',
    950: '#000000',
  },
}

SCSS

$custom: #121c4d;
$custom-light: #59577f;
$custom-dark: #000000;

JSON

{
  "hex": "#121c4d",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 77
  },
  "hsl": {
    "h": 229.831,
    "s": 62.105,
    "l": 18.627
  },
  "oklch": {
    "l": 0.25207,
    "c": 0.09112,
    "h": 269.9
  },
  "luminance": 0.01495
}

Semantic roles & 50–950 ramp

primary

#121C4D

secondary

#867835

accent

#CA43E5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #121C4D

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

Preview Lab → · Contrast checker → · Palette generator →