#121F4A#121F4A

#121F4A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.6% C 0.082 H 267.6°. Best body text is #FFFFFF at 15.90:1 contrast (WCAG AA passes).

Color values

HEX	#121F4A
RGB	rgb(18, 31, 74)
HSL	hsl(226, 61%, 18%)
HSV	hsv(226, 76%, 29%)
CMYK	cmyk(75.7%, 58.1%, 0%, 71%)
CIE-LAB	lab(13.25, 11.40, -28.46)
CIE-LCH	lch(13.25, 30.66, 291.82°)
OKLab	oklab(25.63% -0.0034 -0.0818)
OKLCH	oklch(25.63% 0.082 267.6)
XYZ	xyz(1.9750, 1.6028, 6.6825)
Luminance	0.0160 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F4A #4A3D12

analogous

#123B4A #121F4A #21124A

triadic

#121F4A #4A121F #1F4A12

tetradic

#121F4A #4A123B #4A3D12 #124A21

square

#121F4A #4A123B #4A3D12 #124A21

split-complementary

#121F4A #4A2112 #3B4A12

monochromatic

#060A19 #060A19 #121F4A #1E347B #2A48AC

Accessibility & contrast

On white

15.90

#121F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#121F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F4A

15.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F4A	#FFFFFF	#000000	##FFFFFF
##121F4A	1.00	15.90	1.32	15.90
#FFFFFF	15.90	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04254C

Deuteranopia (green-blind)

#002049

Tritanopia (blue-blind)

#002931

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121f4a;
/* rgb */ color: rgb(18, 31, 74);
/* oklch */ color: oklch(25.6% 0.082 267.6);

Tailwind

colors: {
  custom: {
    50: '#585a7d',
    500: '#121f4a',
    950: '#000000',
  },
}

SCSS

$custom: #121f4a;
$custom-light: #585a7d;
$custom-dark: #000000;

JSON

{
  "hex": "#121f4a",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 74
  },
  "hsl": {
    "h": 226.071,
    "s": 60.87,
    "l": 18.039
  },
  "oklch": {
    "l": 0.25631,
    "c": 0.08186,
    "h": 267.6
  },
  "luminance": 0.01603
}

Semantic roles & 50–950 ramp

primary

#121F4A

secondary

#837135

accent

#BF44E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040309

muted

#79787B

Preview Lab

Preview with #121F4A

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

Preview Lab → · Contrast checker → · Palette generator →