#121D5E#121D5E

#121D5E is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.116 H 269.3°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#121D5E
RGB	rgb(18, 29, 94)
HSL	hsl(231, 68%, 22%)
HSV	hsv(231, 81%, 37%)
CMYK	cmyk(80.9%, 69.1%, 0%, 63.1%)
CIE-LAB	lab(14.49, 21.32, -40.00)
CIE-LCH	lch(14.49, 45.33, 298.05°)
OKLab	oklab(27.13% -0.0013 -0.1157)
OKLCH	oklch(27.13% 0.116 269.3)
XYZ	xyz(2.7085, 1.8152, 10.7951)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121D5E #5E5312

analogous

#12435E #121D5E #2D125E

triadic

#121D5E #5E121D #1D5E12

tetradic

#121D5E #5E1243 #5E5312 #125E2D

square

#121D5E #5E1243 #5E5312 #125E2D

split-complementary

#121D5E #5E2D12 #435E12

monochromatic

#05081A #080D2B #121D5E #1C2D91 #263DC5

Accessibility & contrast

On white

15.41

#121D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#121D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121D5E

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121D5E	#FFFFFF	#000000	##FFFFFF
##121D5E	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002860

Deuteranopia (green-blind)

#00215D

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #121d5e;
/* rgb */ color: rgb(18, 29, 94);
/* oklch */ color: oklch(27.1% 0.116 269.3);

Tailwind

colors: {
  custom: {
    50: '#5e588c',
    500: '#121d5e',
    950: '#000000',
  },
}

SCSS

$custom: #121d5e;
$custom-light: #5e588c;
$custom-dark: #000000;

JSON

{
  "hex": "#121d5e",
  "rgb": {
    "r": 18,
    "g": 29,
    "b": 94
  },
  "hsl": {
    "h": 231.316,
    "s": 67.857,
    "l": 21.961
  },
  "oklch": {
    "l": 0.27125,
    "c": 0.11571,
    "h": 269.3
  },
  "luminance": 0.01815
}

Semantic roles & 50–950 ramp

primary

#121D5E

secondary

#968835

accent

#D23DEB

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #121D5E

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

Preview Lab → · Contrast checker → · Palette generator →