#121B41#121B41

#121B41 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 23.9% C 0.073 H 270.0°. Best body text is #FFFFFF at 16.68:1 contrast (WCAG AA passes).

Color values

HEX	#121B41
RGB	rgb(18, 27, 65)
HSL	hsl(229, 57%, 16%)
HSV	hsv(229, 72%, 25%)
CMYK	cmyk(72.3%, 58.5%, 0%, 74.5%)
CIE-LAB	lab(11.23, 10.63, -25.45)
CIE-LCH	lch(11.23, 27.58, 292.67°)
OKLab	oklab(23.87% 0.0001 -0.073)
OKLCH	oklch(23.87% 0.073 270)
XYZ	xyz(1.5952, 1.2940, 5.1657)
Luminance	0.0129 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B41 #413812

analogous

#123341 #121B41 #211241

triadic

#121B41 #41121B #1B4112

tetradic

#121B41 #411233 #413812 #124121

square

#121B41 #411233 #413812 #124121

split-complementary

#121B41 #412112 #334112

monochromatic

#070A18 #070A18 #121B41 #1F2F71 #2D43A1

Accessibility & contrast

On white

16.68

#121B41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121B41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B41

16.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B41	#FFFFFF	#000000	##FFFFFF
##121B41	1.00	16.68	1.26	16.68
#FFFFFF	16.68	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#052042

Deuteranopia (green-blind)

#001C40

Tritanopia (blue-blind)

#00242B

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121b41;
/* rgb */ color: rgb(18, 27, 65);
/* oklch */ color: oklch(23.9% 0.073 270.0);

Tailwind

colors: {
  custom: {
    50: '#565676',
    500: '#121b41',
    950: '#000000',
  },
}

SCSS

$custom: #121b41;
$custom-light: #565676;
$custom-dark: #000000;

JSON

{
  "hex": "#121b41",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 65
  },
  "hsl": {
    "h": 228.511,
    "s": 56.627,
    "l": 16.275
  },
  "oklch": {
    "l": 0.23874,
    "c": 0.07298,
    "h": 270
  },
  "luminance": 0.01294
}

Semantic roles & 50–950 ramp

primary

#121B41

secondary

#7A6D35

accent

#C348E0

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #121B41

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

Preview Lab → · Contrast checker → · Palette generator →