#121E5A#121E5A

#121E5A is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.9% C 0.108 H 269.0°. Best body text is #FFFFFF at 15.45:1 contrast (WCAG AA passes).

Color values

HEX	#121E5A
RGB	rgb(18, 30, 90)
HSL	hsl(230, 67%, 21%)
HSV	hsv(230, 80%, 35%)
CMYK	cmyk(80%, 66.7%, 0%, 64.7%)
CIE-LAB	lab(14.37, 18.93, -37.51)
CIE-LCH	lch(14.37, 42.02, 296.78°)
OKLab	oklab(26.92% -0.0019 -0.1084)
OKLCH	oklch(26.92% 0.108 269)
XYZ	xyz(2.5586, 1.7951, 9.8825)
Luminance	0.0180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121E5A #5A4E12

analogous

#12425A #121E5A #2A125A

triadic

#121E5A #5A121E #1E5A12

tetradic

#121E5A #5A1242 #5A4E12 #125A2A

square

#121E5A #5A1242 #5A4E12 #125A2A

split-complementary

#121E5A #5A2A12 #425A12

monochromatic

#05081A #080D27 #121E5A #1C2F8D #2640C0

Accessibility & contrast

On white

15.45

#121E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#121E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121E5A

15.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121E5A	#FFFFFF	#000000	##FFFFFF
##121E5A	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)

#00285C

Deuteranopia (green-blind)

#002159

Tritanopia (blue-blind)

#002D38

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #121e5a;
/* rgb */ color: rgb(18, 30, 90);
/* oklch */ color: oklch(26.9% 0.108 269.0);

Tailwind

colors: {
  custom: {
    50: '#5d5989',
    500: '#121e5a',
    950: '#000000',
  },
}

SCSS

$custom: #121e5a;
$custom-light: #5d5989;
$custom-dark: #000000;

JSON

{
  "hex": "#121e5a",
  "rgb": {
    "r": 18,
    "g": 30,
    "b": 90
  },
  "hsl": {
    "h": 230,
    "s": 66.667,
    "l": 21.176
  },
  "oklch": {
    "l": 0.26921,
    "c": 0.10841,
    "h": 269
  },
  "luminance": 0.01795
}

Semantic roles & 50–950 ramp

primary

#121E5A

secondary

#938335

accent

#CD3EEA

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #121E5A

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

Preview Lab → · Contrast checker → · Palette generator →