#133C55#133C55

#133C55 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.063 H 239.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#133C55
RGB	rgb(19, 60, 85)
HSL	hsl(203, 63%, 20%)
HSV	hsv(203, 78%, 33%)
CMYK	cmyk(77.6%, 29.4%, 0%, 66.7%)
CIE-LAB	lab(23.76, -4.64, -19.17)
CIE-LCH	lch(23.76, 19.72, 256.38°)
OKLab	oklab(34.05% -0.032 -0.0541)
OKLCH	oklch(34.05% 0.063 239.4)
XYZ	xyz(3.5235, 4.0256, 9.1839)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C55 #552C13

analogous

#13554D #133C55 #131B55

triadic

#133C55 #55133C #3C5513

tetradic

#133C55 #4D1355 #552C13 #1B5513

square

#133C55 #4D1355 #552C13 #1B5513

split-complementary

#133C55 #55131B #554D13

monochromatic

#061219 #081923 #133C55 #1E5F87 #2983B9

Accessibility & contrast

On white

11.63

#133C55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133C55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C55

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C55	#FFFFFF	#000000	##FFFFFF
##133C55	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303C56

Deuteranopia (green-blind)

#273655

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133c55;
/* rgb */ color: rgb(19, 60, 85);
/* oklch */ color: oklch(34.0% 0.063 239.4);

Tailwind

colors: {
  custom: {
    50: '#5b7185',
    500: '#133c55',
    950: '#000000',
  },
}

SCSS

$custom: #133c55;
$custom-light: #5b7185;
$custom-dark: #000000;

JSON

{
  "hex": "#133c55",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 85
  },
  "hsl": {
    "h": 202.727,
    "s": 63.462,
    "l": 20.392
  },
  "oklch": {
    "l": 0.34048,
    "c": 0.06283,
    "h": 239.4
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#133C55

secondary

#8D5736

accent

#8041E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133C55

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

Preview Lab → · Contrast checker → · Palette generator →