#121A3C#121A3C

#121A3C is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.2% C 0.066 H 270.5°. Best body text is #FFFFFF at 16.95:1 contrast (WCAG AA passes).

Color values

HEX	#121A3C
RGB	rgb(18, 26, 60)
HSL	hsl(229, 54%, 15%)
HSV	hsv(229, 70%, 24%)
CMYK	cmyk(70%, 56.7%, 0%, 76.5%)
CIE-LAB	lab(10.51, 9.29, -23.08)
CIE-LCH	lch(10.51, 24.88, 291.93°)
OKLab	oklab(23.2% 0.0006 -0.066)
OKLCH	oklch(23.2% 0.066 270.5)
XYZ	xyz(1.4342, 1.1935, 4.4289)
Luminance	0.0119 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A3C #3C3412

analogous

#122F3C #121A3C #1F123C

triadic

#121A3C #3C121A #1A3C12

tetradic

#121A3C #3C122F #3C3412 #123C1F

square

#121A3C #3C122F #3C3412 #123C1F

split-complementary

#121A3C #3C1F12 #2F3C12

monochromatic

#070A18 #070A18 #121A3C #202E6B #2E439A

Accessibility & contrast

On white

16.95

#121A3C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#121A3C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A3C

16.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A3C	#FFFFFF	#000000	##FFFFFF
##121A3C	1.00	16.95	1.24	16.95
#FFFFFF	16.95	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#081E3D

Deuteranopia (green-blind)

#031B3B

Tritanopia (blue-blind)

#002228

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #121a3c;
/* rgb */ color: rgb(18, 26, 60);
/* oklch */ color: oklch(23.2% 0.066 270.5);

Tailwind

colors: {
  custom: {
    50: '#555672',
    500: '#121a3c',
    950: '#000000',
  },
}

SCSS

$custom: #121a3c;
$custom-light: #555672;
$custom-dark: #000000;

JSON

{
  "hex": "#121a3c",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 60
  },
  "hsl": {
    "h": 228.571,
    "s": 53.846,
    "l": 15.294
  },
  "oklch": {
    "l": 0.23198,
    "c": 0.06602,
    "h": 270.5
  },
  "luminance": 0.01194
}

Semantic roles & 50–950 ramp

primary

#121A3C

secondary

#756935

accent

#C14BDD

background

#F5F5F6

surface

#E9E8EC

border

#C5C4C7

text

#030308

muted

#78787B

Preview Lab

Preview with #121A3C

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

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