#121D5D#121D5D

#121D5D is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.114 H 269.4°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#121D5D
RGB	rgb(18, 29, 93)
HSL	hsl(231, 68%, 22%)
HSV	hsv(231, 81%, 36%)
CMYK	cmyk(80.6%, 68.8%, 0%, 63.5%)
CIE-LAB	lab(14.39, 20.90, -39.50)
CIE-LCH	lch(14.39, 44.69, 297.89°)
OKLab	oklab(27.02% -0.0013 -0.1142)
OKLCH	oklch(27.02% 0.114 269.4)
XYZ	xyz(2.6639, 1.7974, 10.5603)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D5D #5D5212

analogous

#12435D #121D5D #2D125D

triadic

#121D5D #5D121D #1D5D12

tetradic

#121D5D #5D1243 #5D5212 #125D2D

square

#121D5D #5D1243 #5D5212 #125D2D

split-complementary

#121D5D #5D2D12 #435D12

monochromatic

#05081A #080D2A #121D5D #1C2D90 #263DC4

Accessibility & contrast

On white

15.45

#121D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#121D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D5D

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D5D	#FFFFFF	#000000	##FFFFFF
##121D5D	1.00	15.45	1.36	15.45
#FFFFFF	15.45	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285F

Deuteranopia (green-blind)

#00215C

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #121d5d;
/* rgb */ color: rgb(18, 29, 93);
/* oklch */ color: oklch(27.0% 0.114 269.4);

Tailwind

colors: {
  custom: {
    50: '#5e588c',
    500: '#121d5d',
    950: '#000000',
  },
}

SCSS

$custom: #121d5d;
$custom-light: #5e588c;
$custom-dark: #000000;

JSON

{
  "hex": "#121d5d",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 93
  },
  "hsl": {
    "h": 231.2,
    "s": 67.568,
    "l": 21.765
  },
  "oklch": {
    "l": 0.27021,
    "c": 0.11424,
    "h": 269.4
  },
  "luminance": 0.01798
}

Semantic roles & 50–950 ramp

primary

#121D5D

secondary

#958735

accent

#D13DEA

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #121D5D

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

Preview Lab → · Contrast checker → · Palette generator →