#121F6A#121F6A

#121F6A is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.130 H 268.5°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#121F6A
RGB	rgb(18, 31, 106)
HSL	hsl(231, 71%, 24%)
HSV	hsv(231, 83%, 42%)
CMYK	cmyk(83%, 70.8%, 0%, 58.4%)
CIE-LAB	lab(16.25, 24.77, -45.03)
CIE-LCH	lch(16.25, 51.39, 298.81°)
OKLab	oklab(28.79% -0.0034 -0.1304)
OKLCH	oklch(28.79% 0.13 268.5)
XYZ	xyz(3.3401, 2.1488, 13.8716)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F6A #6A5D12

analogous

#124B6A #121F6A #31126A

triadic

#121F6A #6A121F #1F6A12

tetradic

#121F6A #6A124B #6A5D12 #126A31

square

#121F6A #6A124B #6A5D12 #126A31

split-complementary

#121F6A #6A3112 #4B6A12

monochromatic

#04081A #091036 #121F6A #1B2E9E #243ED3

Accessibility & contrast

On white

14.69

#121F6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#121F6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F6A

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F6A	#FFFFFF	#000000	##FFFFFF
##121F6A	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D6C

Deuteranopia (green-blind)

#002469

Tritanopia (blue-blind)

#003341

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #121f6a;
/* rgb */ color: rgb(18, 31, 106);
/* oklch */ color: oklch(28.8% 0.130 268.5);

Tailwind

colors: {
  custom: {
    50: '#615a95',
    500: '#121f6a',
    950: '#000000',
  },
}

SCSS

$custom: #121f6a;
$custom-light: #615a95;
$custom-dark: #000000;

JSON

{
  "hex": "#121f6a",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 106
  },
  "hsl": {
    "h": 231.136,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.2879,
    "c": 0.13043,
    "h": 268.5
  },
  "luminance": 0.02149
}

Semantic roles & 50–950 ramp

primary

#121F6A

secondary

#A29236

accent

#D33AEE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #121F6A

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

Preview Lab → · Contrast checker → · Palette generator →