#121D55#121D55

#121D55 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.2% C 0.102 H 269.4°. Best body text is #FFFFFF at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#121D55
RGB	rgb(18, 29, 85)
HSL	hsl(230, 65%, 20%)
HSV	hsv(230, 79%, 33%)
CMYK	cmyk(78.8%, 65.9%, 0%, 66.7%)
CIE-LAB	lab(13.61, 17.58, -35.39)
CIE-LCH	lch(13.61, 39.52, 296.41°)
OKLab	oklab(26.21% -0.001 -0.1022)
OKLCH	oklch(26.21% 0.102 269.4)
XYZ	xyz(2.3279, 1.6630, 8.7909)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D55 #554A12

analogous

#123F55 #121D55 #281255

triadic

#121D55 #55121D #1D5512

tetradic

#121D55 #55123F #554A12 #125528

square

#121D55 #55123F #554A12 #125528

split-complementary

#121D55 #552812 #3F5512

monochromatic

#050919 #070C22 #121D55 #1D2E88 #273FBA

Accessibility & contrast

On white

15.76

#121D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#121D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D55

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D55	#FFFFFF	#000000	##FFFFFF
##121D55	1.00	15.76	1.33	15.76
#FFFFFF	15.76	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002657

Deuteranopia (green-blind)

#002054

Tritanopia (blue-blind)

#002B35

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #121d55;
/* rgb */ color: rgb(18, 29, 85);
/* oklch */ color: oklch(26.2% 0.102 269.4);

Tailwind

colors: {
  custom: {
    50: '#5b5885',
    500: '#121d55',
    950: '#000000',
  },
}

SCSS

$custom: #121d55;
$custom-light: #5b5885;
$custom-dark: #000000;

JSON

{
  "hex": "#121d55",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 85
  },
  "hsl": {
    "h": 230.149,
    "s": 65.049,
    "l": 20.196
  },
  "oklch": {
    "l": 0.26207,
    "c": 0.10219,
    "h": 269.4
  },
  "luminance": 0.01663
}

Semantic roles & 50–950 ramp

primary

#121D55

secondary

#8E7F35

accent

#CC40E8

background

#F5F5F8

surface

#E9E9EF

border

#C5C5CA

text

#04030B

muted

#79787C

Preview Lab

Preview with #121D55

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

Preview Lab → · Contrast checker → · Palette generator →