#121F4E#121F4E

#121F4E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.0% C 0.088 H 268.0°. Best body text is #FFFFFF at 15.77:1 contrast (WCAG AA passes).

Color values

HEX	#121F4E
RGB	rgb(18, 31, 78)
HSL	hsl(227, 63%, 19%)
HSV	hsv(227, 77%, 31%)
CMYK	cmyk(76.9%, 60.3%, 0%, 69.4%)
CIE-LAB	lab(13.58, 13.11, -30.67)
CIE-LCH	lch(13.58, 33.35, 293.14°)
OKLab	oklab(25.99% -0.0031 -0.0883)
OKLCH	oklch(25.99% 0.088 268)
XYZ	xyz(2.1141, 1.6584, 7.4149)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F4E #4E4112

analogous

#123D4E #121F4E #23124E

triadic

#121F4E #4E121F #1F4E12

tetradic

#121F4E #4E123D #4E4112 #124E23

square

#121F4E #4E123D #4E4112 #124E23

split-complementary

#121F4E #4E2312 #3D4E12

monochromatic

#060A19 #070B1C #121F4E #1D3380 #2947B1

Accessibility & contrast

On white

15.77

#121F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#121F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F4E

15.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F4E	#FFFFFF	#000000	##FFFFFF
##121F4E	1.00	15.77	1.33	15.77
#FFFFFF	15.77	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002650

Deuteranopia (green-blind)

#00204D

Tritanopia (blue-blind)

#002A33

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #121f4e;
/* rgb */ color: rgb(18, 31, 78);
/* oklch */ color: oklch(26.0% 0.088 268.0);

Tailwind

colors: {
  custom: {
    50: '#595a80',
    500: '#121f4e',
    950: '#000000',
  },
}

SCSS

$custom: #121f4e;
$custom-light: #595a80;
$custom-dark: #000000;

JSON

{
  "hex": "#121f4e",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 78
  },
  "hsl": {
    "h": 227,
    "s": 62.5,
    "l": 18.824
  },
  "oklch": {
    "l": 0.2599,
    "c": 0.08833,
    "h": 268
  },
  "luminance": 0.01659
}

Semantic roles & 50–950 ramp

primary

#121F4E

secondary

#877535

accent

#C242E6

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #121F4E

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

Preview Lab → · Contrast checker → · Palette generator →