#121357#121357

#121357 is a very dark, moderate blue. Relative luminance 0.013; OKLCH L 24.5% C 0.118 H 272.8°. Best body text is #FFFFFF at 16.71:1 contrast (WCAG AA passes).

Color values

HEX	#121357
RGB	rgb(18, 19, 87)
HSL	hsl(239, 66%, 21%)
HSV	hsv(239, 79%, 34%)
CMYK	cmyk(79.3%, 78.2%, 0%, 65.9%)
CIE-LAB	lab(11.15, 25.51, -40.78)
CIE-LCH	lch(11.15, 48.10, 302.03°)
OKLab	oklab(24.48% 0.0058 -0.118)
OKLCH	oklch(24.48% 0.118 272.8)
XYZ	xyz(2.2020, 1.2822, 9.1464)
Luminance	0.0128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#121357 #575612

analogous

#123557 #121357 #331257

triadic

#121357 #571213 #135712

tetradic

#121357 #571235 #575612 #125733

square

#121357 #571235 #575612 #125733

split-complementary

#121357 #573312 #355712

monochromatic

#050619 #080824 #121357 #1C1E8A #2729BC

Accessibility & contrast

On white

16.71

#121357 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#121357 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #121357

16.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##121357	#FFFFFF	#000000	##FFFFFF
##121357	1.00	16.71	1.26	16.71
#FFFFFF	16.71	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002159

Deuteranopia (green-blind)

#001A56

Tritanopia (blue-blind)

#002633

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #121357;
/* rgb */ color: rgb(18, 19, 87);
/* oklch */ color: oklch(24.5% 0.118 272.8);

Tailwind

colors: {
  custom: {
    50: '#5d5187',
    500: '#121357',
    950: '#000000',
  },
}

SCSS

$custom: #121357;
$custom-light: #5d5187;
$custom-dark: #000000;

JSON

{
  "hex": "#121357",
  "rgb": {
    "r": 18,
    "g": 19,
    "b": 87
  },
  "hsl": {
    "h": 239.13,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.2448,
    "c": 0.11813,
    "h": 272.8
  },
  "luminance": 0.01282
}

Semantic roles & 50–950 ramp

primary

#121357

secondary

#908E35

accent

#E63FE9

background

#F5F4F8

surface

#EAE7F0

border

#C6C3CB

text

#05020B

muted

#79787C

Preview Lab

Preview with #121357

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

Preview Lab → · Contrast checker → · Palette generator →