#121B59#121B59

#121B59 is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.2% C 0.111 H 270.2°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#121B59
RGB	rgb(18, 27, 89)
HSL	hsl(232, 66%, 21%)
HSV	hsv(232, 80%, 35%)
CMYK	cmyk(79.8%, 69.7%, 0%, 65.1%)
CIE-LAB	lab(13.43, 20.71, -38.38)
CIE-LCH	lch(13.43, 43.61, 298.35°)
OKLab	oklab(26.2% 0.0004 -0.111)
OKLCH	oklch(26.2% 0.111 270.2)
XYZ	xyz(2.4439, 1.6335, 9.6357)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121B59 #595012

analogous

#123E59 #121B59 #2C1259

triadic

#121B59 #59121B #1B5912

tetradic

#121B59 #59123E #595012 #12592C

square

#121B59 #59123E #595012 #12592C

split-complementary

#121B59 #592C12 #3E5912

monochromatic

#050819 #080C26 #121B59 #1C2A8C #273ABF

Accessibility & contrast

On white

15.83

#121B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#121B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121B59

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121B59	#FFFFFF	#000000	##FFFFFF
##121B59	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00265B

Deuteranopia (green-blind)

#001F58

Tritanopia (blue-blind)

#002B37

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #121b59;
/* rgb */ color: rgb(18, 27, 89);
/* oklch */ color: oklch(26.2% 0.111 270.2);

Tailwind

colors: {
  custom: {
    50: '#5d5789',
    500: '#121b59',
    950: '#000000',
  },
}

SCSS

$custom: #121b59;
$custom-light: #5d5789;
$custom-dark: #000000;

JSON

{
  "hex": "#121b59",
  "rgb": {
    "r": 18,
    "g": 27,
    "b": 89
  },
  "hsl": {
    "h": 232.394,
    "s": 66.355,
    "l": 20.98
  },
  "oklch": {
    "l": 0.26198,
    "c": 0.11096,
    "h": 270.2
  },
  "luminance": 0.01634
}

Semantic roles & 50–950 ramp

primary

#121B59

secondary

#928635

accent

#D43FE9

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05030B

muted

#79787C

Preview Lab

Preview with #121B59

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

Preview Lab → · Contrast checker → · Palette generator →