#121C7E#121C7E

#121C7E is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.5% C 0.161 H 268.4°. Best body text is #FFFFFF at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#121C7E
RGB	rgb(18, 28, 126)
HSL	hsl(234, 75%, 28%)
HSV	hsv(234, 86%, 49%)
CMYK	cmyk(85.7%, 77.8%, 0%, 50.6%)
CIE-LAB	lab(17.76, 34.42, -55.44)
CIE-LCH	lch(17.76, 65.25, 301.83°)
OKLab	oklab(30.54% -0.0045 -0.1607)
OKLCH	oklch(30.54% 0.161 268.4)
XYZ	xyz(4.4293, 2.4649, 19.9770)
Luminance	0.0246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C7E #7E7412

analogous

#12527E #121C7E #3E127E

triadic

#121C7E #7E121C #1C7E12

tetradic

#121C7E #7E1252 #7E7412 #127E3E

square

#121C7E #7E1252 #7E7412 #127E3E

split-complementary

#121C7E #7E3E12 #527E12

monochromatic

#04061B #0A1048 #121C7E #1A28B4 #2A3BE1

Accessibility & contrast

On white

14.07

#121C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#121C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C7E

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C7E	#FFFFFF	#000000	##FFFFFF
##121C7E	1.00	14.07	1.49	14.07
#FFFFFF	14.07	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003181

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #121c7e;
/* rgb */ color: rgb(18, 28, 126);
/* oklch */ color: oklch(30.5% 0.161 268.4);

Tailwind

colors: {
  custom: {
    50: '#6759a5',
    500: '#121c7e',
    950: '#000000',
  },
}

SCSS

$custom: #121c7e;
$custom-light: #6759a5;
$custom-dark: #000000;

JSON

{
  "hex": "#121c7e",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 126
  },
  "hsl": {
    "h": 234.444,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3054,
    "c": 0.16073,
    "h": 268.4
  },
  "luminance": 0.02465
}

Semantic roles & 50–950 ramp

primary

#121C7E

secondary

#B4A838

accent

#E036F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #121C7E

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

Preview Lab → · Contrast checker → · Palette generator →