#133B54#133B54

#133B54 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.062 H 239.9°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#133B54
RGB	rgb(19, 59, 84)
HSL	hsl(203, 63%, 20%)
HSV	hsv(203, 77%, 33%)
CMYK	cmyk(77.4%, 29.8%, 0%, 67.1%)
CIE-LAB	lab(23.36, -4.39, -19.13)
CIE-LCH	lch(23.36, 19.63, 257.09°)
OKLab	oklab(33.72% -0.0312 -0.054)
OKLCH	oklch(33.72% 0.062 239.9)
XYZ	xyz(3.4321, 3.9061, 8.9589)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B54 #542C13

analogous

#13544C #133B54 #131A54

triadic

#133B54 #54133B #3B5413

tetradic

#133B54 #4C1354 #542C13 #1A5413

square

#133B54 #4C1354 #542C13 #1A5413

split-complementary

#133B54 #54131A #544C13

monochromatic

#061219 #081822 #133B54 #1E5E86 #2A81B8

Accessibility & contrast

On white

11.79

#133B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#133B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B54

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B54	#FFFFFF	#000000	##FFFFFF
##133B54	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3B55

Deuteranopia (green-blind)

#263554

Tritanopia (blue-blind)

#004144

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133b54;
/* rgb */ color: rgb(19, 59, 84);
/* oklch */ color: oklch(33.7% 0.062 239.9);

Tailwind

colors: {
  custom: {
    50: '#5b7084',
    500: '#133b54',
    950: '#000000',
  },
}

SCSS

$custom: #133b54;
$custom-light: #5b7084;
$custom-dark: #000000;

JSON

{
  "hex": "#133b54",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 84
  },
  "hsl": {
    "h": 203.077,
    "s": 63.107,
    "l": 20.196
  },
  "oklch": {
    "l": 0.33716,
    "c": 0.06236,
    "h": 239.9
  },
  "luminance": 0.03906
}

Semantic roles & 50–950 ramp

primary

#133B54

secondary

#8C5736

accent

#8142E6

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133B54

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

Preview Lab → · Contrast checker → · Palette generator →