#121F55#121F55

#121F55 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.6% C 0.099 H 268.4°. Best body text is #FFFFFF at 15.52:1 contrast (WCAG AA passes).

Color values

HEX	#121F55
RGB	rgb(18, 31, 85)
HSL	hsl(228, 65%, 20%)
HSV	hsv(228, 79%, 33%)
CMYK	cmyk(78.8%, 63.5%, 0%, 66.7%)
CIE-LAB	lab(14.20, 16.09, -34.43)
CIE-LCH	lch(14.20, 38.00, 295.04°)
OKLab	oklab(26.65% -0.0027 -0.0993)
OKLCH	oklch(26.65% 0.099 268.4)
XYZ	xyz(2.3786, 1.7642, 8.8077)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121F55 #554812

analogous

#124155 #121F55 #261255

triadic

#121F55 #55121F #1F5512

tetradic

#121F55 #551241 #554812 #125526

square

#121F55 #551241 #554812 #125526

split-complementary

#121F55 #552612 #415512

monochromatic

#050919 #070D22 #121F55 #1D3188 #2744BA

Accessibility & contrast

On white

15.52

#121F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#121F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121F55

15.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121F55	#FFFFFF	#000000	##FFFFFF
##121F55	1.00	15.52	1.35	15.52
#FFFFFF	15.52	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002757

Deuteranopia (green-blind)

#002154

Tritanopia (blue-blind)

#002C36

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #121f55;
/* rgb */ color: rgb(18, 31, 85);
/* oklch */ color: oklch(26.6% 0.099 268.4);

Tailwind

colors: {
  custom: {
    50: '#5b5a85',
    500: '#121f55',
    950: '#000000',
  },
}

SCSS

$custom: #121f55;
$custom-light: #5b5a85;
$custom-dark: #000000;

JSON

{
  "hex": "#121f55",
  "rgb": {
    "r": 18,
    "g": 31,
    "b": 85
  },
  "hsl": {
    "h": 228.358,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.26645,
    "c": 0.09937,
    "h": 268.4
  },
  "luminance": 0.01764
}

Semantic roles & 50–950 ramp

primary

#121F55

secondary

#8E7D35

accent

#C740E8

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #121F55

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

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