#121753#121753

#121753 is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.107 H 272.0°. Best body text is #FFFFFF at 16.49:1 contrast (WCAG AA passes).

Color values

HEX	#121753
RGB	rgb(18, 23, 83)
HSL	hsl(235, 64%, 20%)
HSV	hsv(235, 78%, 33%)
CMYK	cmyk(78.3%, 72.3%, 0%, 67.5%)
CIE-LAB	lab(11.73, 21.16, -37.11)
CIE-LCH	lch(11.73, 42.72, 299.69°)
OKLab	oklab(24.76% 0.0038 -0.1073)
OKLCH	oklch(24.76% 0.107 272)
XYZ	xyz(2.1167, 1.3657, 8.3340)
Luminance	0.0137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121753 #534E12

analogous

#123753 #121753 #2E1253

triadic

#121753 #531217 #175312

tetradic

#121753 #531237 #534E12 #12532E

square

#121753 #531237 #534E12 #12532E

split-complementary

#121753 #532E12 #375312

monochromatic

#050719 #070921 #121753 #1D2585 #2833B8

Accessibility & contrast

On white

16.49

#121753 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.27

#121753 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121753

16.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121753	#FFFFFF	#000000	##FFFFFF
##121753	1.00	16.49	1.27	16.49
#FFFFFF	16.49	1.00	21.00	1.00
#000000	1.27	21.00	1.00	21.00
##FFFFFF	16.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002255

Deuteranopia (green-blind)

#001C52

Tritanopia (blue-blind)

#002732

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #121753;
/* rgb */ color: rgb(18, 23, 83);
/* oklch */ color: oklch(24.8% 0.107 272.0);

Tailwind

colors: {
  custom: {
    50: '#5b5484',
    500: '#121753',
    950: '#000000',
  },
}

SCSS

$custom: #121753;
$custom-light: #5b5484;
$custom-dark: #000000;

JSON

{
  "hex": "#121753",
  "rgb": {
    "r": 18,
    "g": 23,
    "b": 83
  },
  "hsl": {
    "h": 235.385,
    "s": 64.356,
    "l": 19.804
  },
  "oklch": {
    "l": 0.24763,
    "c": 0.10734,
    "h": 272
  },
  "luminance": 0.01366
}

Semantic roles & 50–950 ramp

primary

#121753

secondary

#8C8535

accent

#DB40E7

background

#F5F4F8

surface

#E9E7EF

border

#C5C3CA

text

#04020B

muted

#79787C

Preview Lab

Preview with #121753

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

Preview Lab → · Contrast checker → · Palette generator →