#121B63#121B63

#121B63 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.3% C 0.125 H 269.8°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#121B63
RGB	rgb(18, 27, 99)
HSL	hsl(233, 69%, 23%)
HSV	hsv(233, 82%, 39%)
CMYK	cmyk(81.8%, 72.7%, 0%, 61.2%)
CIE-LAB	lab(14.47, 24.76, -43.35)
CIE-LCH	lch(14.47, 49.92, 299.73°)
OKLab	oklab(27.27% -0.0005 -0.1255)
OKLCH	oklch(27.27% 0.125 269.8)
XYZ	xyz(2.8927, 1.8130, 11.9994)
Luminance	0.0181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B63 #635A12

analogous

#124363 #121B63 #311263

triadic

#121B63 #63121B #1B6312

tetradic

#121B63 #631243 #635A12 #126331

square

#121B63 #631243 #635A12 #126331

split-complementary

#121B63 #633112 #436312

monochromatic

#05071A #090D2F #121B63 #1B2997 #2537CB

Accessibility & contrast

On white

15.41

#121B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#121B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B63

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B63	#FFFFFF	#000000	##FFFFFF
##121B63	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)

#002865

Deuteranopia (green-blind)

#002162

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #121b63;
/* rgb */ color: rgb(18, 27, 99);
/* oklch */ color: oklch(27.3% 0.125 269.8);

Tailwind

colors: {
  custom: {
    50: '#605790',
    500: '#121b63',
    950: '#000000',
  },
}

SCSS

$custom: #121b63;
$custom-light: #605790;
$custom-dark: #000000;

JSON

{
  "hex": "#121b63",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 99
  },
  "hsl": {
    "h": 233.333,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.27274,
    "c": 0.12548,
    "h": 269.8
  },
  "luminance": 0.01813
}

Semantic roles & 50–950 ramp

primary

#121B63

secondary

#9B9036

accent

#D83CEC

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030D

muted

#7A787D

Preview Lab

Preview with #121B63

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

Preview Lab → · Contrast checker → · Palette generator →