#121C38#121C38

#121C38 is a very dark, muted blue. Relative luminance 0.012; OKLCH L 23.4% C 0.056 H 267.2°. Best body text is #FFFFFF at 16.81:1 contrast (WCAG AA passes).

Color values

HEX	#121C38
RGB	rgb(18, 28, 56)
HSL	hsl(224, 51%, 15%)
HSV	hsv(224, 68%, 22%)
CMYK	cmyk(67.9%, 50%, 0%, 78%)
CIE-LAB	lab(10.88, 6.06, -19.63)
CIE-LCH	lch(10.88, 20.54, 287.16°)
OKLab	oklab(23.39% -0.0027 -0.0558)
OKLCH	oklch(23.39% 0.056 267.2)
XYZ	xyz(1.3783, 1.2445, 3.9082)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121C38 #382E12

analogous

#122F38 #121C38 #1B1238

triadic

#121C38 #38121C #1C3812

tetradic

#121C38 #38122F #382E12 #12381B

square

#121C38 #38122F #382E12 #12381B

split-complementary

#121C38 #381B12 #2F3812

monochromatic

#070C17 #070C17 #121C38 #213366 #304A95

Accessibility & contrast

On white

16.81

#121C38 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#121C38 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121C38

16.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121C38	#FFFFFF	#000000	##FFFFFF
##121C38	1.00	16.81	1.25	16.81
#FFFFFF	16.81	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#101F39

Deuteranopia (green-blind)

#0B1C37

Tritanopia (blue-blind)

#002227

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #121c38;
/* rgb */ color: rgb(18, 28, 56);
/* oklch */ color: oklch(23.4% 0.056 267.2);

Tailwind

colors: {
  custom: {
    50: '#54576f',
    500: '#121c38',
    950: '#000000',
  },
}

SCSS

$custom: #121c38;
$custom-light: #54576f;
$custom-dark: #000000;

JSON

{
  "hex": "#121c38",
  "rgb": {
    "r": 18,
    "g": 28,
    "b": 56
  },
  "hsl": {
    "h": 224.211,
    "s": 51.351,
    "l": 14.51
  },
  "oklch": {
    "l": 0.23387,
    "c": 0.05592,
    "h": 267.2
  },
  "luminance": 0.01245
}

Semantic roles & 50–950 ramp

primary

#121C38

secondary

#716135

accent

#B54DDB

background

#F4F5F6

surface

#E8E9EC

border

#C4C5C7

text

#030307

muted

#78787A

Preview Lab

Preview with #121C38

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

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