#121B66#121B66

#121B66 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.6% C 0.130 H 269.6°. Best body text is #FFFFFF at 15.28:1 contrast (WCAG AA passes).

Color values

HEX	#121B66
RGB	rgb(18, 27, 102)
HSL	hsl(234, 70%, 24%)
HSV	hsv(234, 82%, 40%)
CMYK	cmyk(82.4%, 73.5%, 0%, 60%)
CIE-LAB	lab(14.80, 25.95, -44.80)
CIE-LCH	lch(14.80, 51.77, 300.08°)
OKLab	oklab(27.61% -0.0008 -0.1297)
OKLCH	oklch(27.61% 0.13 269.6)
XYZ	xyz(3.0388, 1.8714, 12.7689)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B66 #665D12

analogous

#124566 #121B66 #331266

triadic

#121B66 #66121B #1B6612

tetradic

#121B66 #661245 #665D12 #126633

square

#121B66 #661245 #665D12 #126633

split-complementary

#121B66 #663312 #456612

monochromatic

#05071A #090D32 #121B66 #1B299A #2437CE

Accessibility & contrast

On white

15.28

#121B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#121B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B66

15.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B66	#FFFFFF	#000000	##FFFFFF
##121B66	1.00	15.28	1.37	15.28
#FFFFFF	15.28	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002968

Deuteranopia (green-blind)

#002165

Tritanopia (blue-blind)

#00303E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #121b66;
/* rgb */ color: rgb(18, 27, 102);
/* oklch */ color: oklch(27.6% 0.130 269.6);

Tailwind

colors: {
  custom: {
    50: '#605793',
    500: '#121b66',
    950: '#000000',
  },
}

SCSS

$custom: #121b66;
$custom-light: #605793;
$custom-dark: #000000;

JSON

{
  "hex": "#121b66",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 233.571,
    "s": 70,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27607,
    "c": 0.12971,
    "h": 269.6
  },
  "luminance": 0.01872
}

Semantic roles & 50–950 ramp

primary

#121B66

secondary

#9E9336

accent

#DA3BED

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #121B66

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

Preview Lab → · Contrast checker → · Palette generator →