#121F51#121F51

#121F51 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.3% C 0.093 H 268.2°. Best body text is #FFFFFF at 15.66:1 contrast (WCAG AA passes).

Color values

HEX	#121F51
RGB	rgb(18, 31, 81)
HSL	hsl(228, 64%, 19%)
HSV	hsv(228, 78%, 32%)
CMYK	cmyk(77.8%, 61.7%, 0%, 68.2%)
CIE-LAB	lab(13.84, 14.39, -32.30)
CIE-LCH	lch(13.84, 35.36, 294.01°)
OKLab	oklab(26.27% -0.0029 -0.0931)
OKLCH	oklch(26.27% 0.093 268.2)
XYZ	xyz(2.2241, 1.7024, 7.9944)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F51 #514412

analogous

#123F51 #121F51 #251251

triadic

#121F51 #51121F #1F5112

tetradic

#121F51 #51123F #514412 #125125

square

#121F51 #51123F #514412 #125125

split-complementary

#121F51 #512512 #3F5112

monochromatic

#060A19 #070C1F #121F51 #1D3283 #2845B5

Accessibility & contrast

On white

15.66

#121F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#121F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F51

15.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F51	#FFFFFF	#000000	##FFFFFF
##121F51	1.00	15.66	1.34	15.66
#FFFFFF	15.66	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002653

Deuteranopia (green-blind)

#002050

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #121f51;
/* rgb */ color: rgb(18, 31, 81);
/* oklch */ color: oklch(26.3% 0.093 268.2);

Tailwind

colors: {
  custom: {
    50: '#5a5a82',
    500: '#121f51',
    950: '#000000',
  },
}

SCSS

$custom: #121f51;
$custom-light: #5a5a82;
$custom-dark: #000000;

JSON

{
  "hex": "#121f51",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 81
  },
  "hsl": {
    "h": 227.619,
    "s": 63.636,
    "l": 19.412
  },
  "oklch": {
    "l": 0.26267,
    "c": 0.0931,
    "h": 268.2
  },
  "luminance": 0.01703
}

Semantic roles & 50–950 ramp

primary

#121F51

secondary

#8A7835

accent

#C541E7

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030A

muted

#79787C

Preview Lab

Preview with #121F51

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

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