#121458#121458

#121458 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.8% C 0.118 H 272.5°. Best body text is #FFFFFF at 16.58:1 contrast (WCAG AA passes).

Color values

HEX	#121458
RGB	rgb(18, 20, 88)
HSL	hsl(238, 66%, 21%)
HSV	hsv(238, 80%, 35%)
CMYK	cmyk(79.5%, 77.3%, 0%, 65.5%)
CIE-LAB	lab(11.51, 25.23, -40.87)
CIE-LCH	lch(11.51, 48.03, 301.68°)
OKLab	oklab(24.77% 0.0051 -0.1183)
OKLCH	oklch(24.77% 0.118 272.5)
XYZ	xyz(2.2605, 1.3333, 9.3688)
Luminance	0.0133 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121458 #585612

analogous

#123758 #121458 #331258

triadic

#121458 #581214 #145812

tetradic

#121458 #581237 #585612 #125833

square

#121458 #581237 #585612 #125833

split-complementary

#121458 #583312 #375812

monochromatic

#050619 #080825 #121458 #1C208B #272BBE

Accessibility & contrast

On white

16.58

#121458 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#121458 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121458

16.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121458	#FFFFFF	#000000	##FFFFFF
##121458	1.00	16.58	1.27	16.58
#FFFFFF	16.58	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00225A

Deuteranopia (green-blind)

#001B57

Tritanopia (blue-blind)

#002734

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121458;
/* rgb */ color: rgb(18, 20, 88);
/* oklch */ color: oklch(24.8% 0.118 272.5);

Tailwind

colors: {
  custom: {
    50: '#5d5288',
    500: '#121458',
    950: '#000000',
  },
}

SCSS

$custom: #121458;
$custom-light: #5d5288;
$custom-dark: #000000;

JSON

{
  "hex": "#121458",
  "rgb": {
    "r": 18,
    "g": 20,
    "b": 88
  },
  "hsl": {
    "h": 238.286,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.24769,
    "c": 0.11837,
    "h": 272.5
  },
  "luminance": 0.01333
}

Semantic roles & 50–950 ramp

primary

#121458

secondary

#918E35

accent

#E43FE9

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121458

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

Preview Lab → · Contrast checker → · Palette generator →