#121559#121559

#121559 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.1% C 0.119 H 272.1°. Best body text is #FFFFFF at 16.44:1 contrast (WCAG AA passes).

Color values

HEX	#121559
RGB	rgb(18, 21, 89)
HSL	hsl(237, 66%, 21%)
HSV	hsv(237, 80%, 35%)
CMYK	cmyk(79.8%, 76.4%, 0%, 65.1%)
CIE-LAB	lab(11.86, 24.94, -40.96)
CIE-LCH	lch(11.86, 47.95, 301.34°)
OKLab	oklab(25.06% 0.0043 -0.1185)
OKLCH	oklch(25.06% 0.119 272.1)
XYZ	xyz(2.3202, 1.3860, 9.5945)
Luminance	0.0139 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121559 #595612

analogous

#123859 #121559 #321259

triadic

#121559 #591215 #155912

tetradic

#121559 #591238 #595612 #125932

square

#121559 #591238 #595612 #125932

split-complementary

#121559 #593212 #385912

monochromatic

#050619 #080926 #121559 #1C218C #272DBF

Accessibility & contrast

On white

16.44

#121559 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121559 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121559

16.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121559	#FFFFFF	#000000	##FFFFFF
##121559	1.00	16.44	1.28	16.44
#FFFFFF	16.44	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235B

Deuteranopia (green-blind)

#001C58

Tritanopia (blue-blind)

#002835

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121559;
/* rgb */ color: rgb(18, 21, 89);
/* oklch */ color: oklch(25.1% 0.119 272.1);

Tailwind

colors: {
  custom: {
    50: '#5d5389',
    500: '#121559',
    950: '#000000',
  },
}

SCSS

$custom: #121559;
$custom-light: #5d5389;
$custom-dark: #000000;

JSON

{
  "hex": "#121559",
  "rgb": {
    "r": 18,
    "g": 21,
    "b": 89
  },
  "hsl": {
    "h": 237.465,
    "s": 66.355,
    "l": 20.98
  },
  "oklch": {
    "l": 0.25059,
    "c": 0.11859,
    "h": 272.1
  },
  "luminance": 0.01386
}

Semantic roles & 50–950 ramp

primary

#121559

secondary

#928E35

accent

#E23FE9

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121559

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

Preview Lab → · Contrast checker → · Palette generator →