#121658#121658

#121658 is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.1% C 0.116 H 271.9°. Best body text is #FFFFFF at 16.39:1 contrast (WCAG AA passes).

Color values

HEX	#121658
RGB	rgb(18, 22, 88)
HSL	hsl(237, 66%, 21%)
HSV	hsv(237, 80%, 35%)
CMYK	cmyk(79.5%, 75%, 0%, 65.5%)
CIE-LAB	lab(12.00, 23.86, -40.05)
CIE-LCH	lch(12.00, 46.62, 300.78°)
OKLab	oklab(25.13% 0.0038 -0.1159)
OKLCH	oklch(25.13% 0.116 271.9)
XYZ	xyz(2.2972, 1.4068, 9.3811)
Luminance	0.0141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121658 #585412

analogous

#123958 #121658 #311258

triadic

#121658 #581216 #165812

tetradic

#121658 #581239 #585412 #125831

square

#121658 #581239 #585412 #125831

split-complementary

#121658 #583112 #395812

monochromatic

#050619 #080925 #121658 #1C238B #272FBE

Accessibility & contrast

On white

16.39

#121658 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#121658 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121658

16.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121658	#FFFFFF	#000000	##FFFFFF
##121658	1.00	16.39	1.28	16.39
#FFFFFF	16.39	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00235A

Deuteranopia (green-blind)

#001C57

Tritanopia (blue-blind)

#002835

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121658;
/* rgb */ color: rgb(18, 22, 88);
/* oklch */ color: oklch(25.1% 0.116 271.9);

Tailwind

colors: {
  custom: {
    50: '#5d5388',
    500: '#121658',
    950: '#000000',
  },
}

SCSS

$custom: #121658;
$custom-light: #5d5388;
$custom-dark: #000000;

JSON

{
  "hex": "#121658",
  "rgb": {
    "r": 18,
    "g": 22,
    "b": 88
  },
  "hsl": {
    "h": 236.571,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.25126,
    "c": 0.11594,
    "h": 271.9
  },
  "luminance": 0.01407
}

Semantic roles & 50–950 ramp

primary

#121658

secondary

#918B35

accent

#DF3FE9

background

#F5F4F8

surface

#E9E7F0

border

#C5C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121658

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

Preview Lab → · Contrast checker → · Palette generator →