#121A5F#121A5F

#121A5F is a dark, vivid blue. Relative luminance 0.017; OKLCH L 26.6% C 0.121 H 270.2°. Best body text is #FFFFFF at 15.69:1 contrast (WCAG AA passes).

Color values

HEX	#121A5F
RGB	rgb(18, 26, 95)
HSL	hsl(234, 68%, 22%)
HSV	hsv(234, 81%, 37%)
CMYK	cmyk(81.1%, 72.6%, 0%, 62.7%)
CIE-LAB	lab(13.79, 23.86, -41.82)
CIE-LCH	lch(13.79, 48.15, 299.71°)
OKLab	oklab(26.65% 0.0005 -0.121)
OKLCH	oklch(26.65% 0.121 270.2)
XYZ	xyz(2.6837, 1.6933, 11.0097)
Luminance	0.0169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121A5F #5F5712

analogous

#12415F #121A5F #30125F

triadic

#121A5F #5F121A #1A5F12

tetradic

#121A5F #5F1241 #5F5712 #125F30

square

#121A5F #5F1241 #5F5712 #125F30

split-complementary

#121A5F #5F3012 #415F12

monochromatic

#05071A #080C2C #121A5F #1C2892 #2536C6

Accessibility & contrast

On white

15.69

#121A5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#121A5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121A5F

15.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121A5F	#FFFFFF	#000000	##FFFFFF
##121A5F	1.00	15.69	1.34	15.69
#FFFFFF	15.69	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002761

Deuteranopia (green-blind)

#001F5E

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #121a5f;
/* rgb */ color: rgb(18, 26, 95);
/* oklch */ color: oklch(26.6% 0.121 270.2);

Tailwind

colors: {
  custom: {
    50: '#5f568d',
    500: '#121a5f',
    950: '#000000',
  },
}

SCSS

$custom: #121a5f;
$custom-light: #5f568d;
$custom-dark: #000000;

JSON

{
  "hex": "#121a5f",
  "rgb": {
    "r": 18,
    "g": 26,
    "b": 95
  },
  "hsl": {
    "h": 233.766,
    "s": 68.142,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26647,
    "c": 0.12102,
    "h": 270.2
  },
  "luminance": 0.01694
}

Semantic roles & 50–950 ramp

primary

#121A5F

secondary

#978D36

accent

#D93DEB

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #121A5F

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

Preview Lab → · Contrast checker → · Palette generator →