#133F4A#133F4A

#133F4A is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.051 H 217.5°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#133F4A
RGB	rgb(19, 63, 74)
HSL	hsl(192, 59%, 18%)
HSV	hsv(192, 74%, 29%)
CMYK	cmyk(74.3%, 14.9%, 0%, 71%)
CIE-LAB	lab(24.28, -10.82, -11.10)
CIE-LCH	lch(24.28, 15.50, 225.73°)
OKLab	oklab(34.29% -0.0402 -0.0309)
OKLCH	oklch(34.29% 0.051 217.5)
XYZ	xyz(3.2816, 4.1875, 7.1126)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F4A #4A1E13

analogous

#134A39 #133F4A #13234A

triadic

#133F4A #4A133F #3F4A13

tetradic

#133F4A #39134A #4A1E13 #234A13

square

#133F4A #39134A #4A1E13 #234A13

split-complementary

#133F4A #4A1323 #4A3913

monochromatic

#061518 #061619 #133F4A #20687B #2C92AB

Accessibility & contrast

On white

11.43

#133F4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#133F4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F4A

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F4A	#FFFFFF	#000000	##FFFFFF
##133F4A	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383D4B

Deuteranopia (green-blind)

#30374A

Tritanopia (blue-blind)

#004342

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133f4a;
/* rgb */ color: rgb(19, 63, 74);
/* oklch */ color: oklch(34.3% 0.051 217.5);

Tailwind

colors: {
  custom: {
    50: '#59747c',
    500: '#133f4a',
    950: '#000000',
  },
}

SCSS

$custom: #133f4a;
$custom-light: #59747c;
$custom-dark: #000000;

JSON

{
  "hex": "#133f4a",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 74
  },
  "hsl": {
    "h": 192,
    "s": 59.14,
    "l": 18.235
  },
  "oklch": {
    "l": 0.34294,
    "c": 0.05074,
    "h": 217.5
  },
  "luminance": 0.04188
}

Semantic roles & 50–950 ramp

primary

#133F4A

secondary

#834536

accent

#6545E2

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #133F4A

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

Preview Lab → · Contrast checker → · Palette generator →