#12355B#12355B

#12355B is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.5% C 0.079 H 253.0°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#12355B
RGB	rgb(18, 53, 91)
HSL	hsl(211, 67%, 21%)
HSV	hsv(211, 80%, 36%)
CMYK	cmyk(80.2%, 41.8%, 0%, 64.3%)
CIE-LAB	lab(21.69, 2.46, -26.38)
CIE-LCH	lch(21.69, 26.49, 275.33°)
OKLab	oklab(32.52% -0.023 -0.0752)
OKLCH	oklch(32.52% 0.079 253)
XYZ	xyz(3.4102, 3.4297, 10.3778)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12355B #5B3812

analogous

#125A5B #12355B #14125B

triadic

#12355B #5B1235 #355B12

tetradic

#12355B #5B125A #5B3812 #125B14

square

#12355B #5B125A #5B3812 #125B14

split-complementary

#12355B #5B1412 #5A5B12

monochromatic

#050F1A #081728 #12355B #1C538E #2671C1

Accessibility & contrast

On white

12.46

#12355B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#12355B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12355B

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12355B	#FFFFFF	#000000	##FFFFFF
##12355B	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23385D

Deuteranopia (green-blind)

#18315A

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #12355b;
/* rgb */ color: rgb(18, 53, 91);
/* oklch */ color: oklch(32.5% 0.079 253.0);

Tailwind

colors: {
  custom: {
    50: '#5c6b89',
    500: '#12355b',
    950: '#000000',
  },
}

SCSS

$custom: #12355b;
$custom-light: #5c6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#12355b",
  "rgb": {
    "r": 18,
    "g": 53,
    "b": 91
  },
  "hsl": {
    "h": 211.233,
    "s": 66.972,
    "l": 21.373
  },
  "oklch": {
    "l": 0.32524,
    "c": 0.07867,
    "h": 253
  },
  "luminance": 0.0343
}

Semantic roles & 50–950 ramp

primary

#12355B

secondary

#936635

accent

#973EEA

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #12355B

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

Preview Lab → · Contrast checker → · Palette generator →