#133D4D#133D4D

#133D4D is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.053 H 227.0°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX	#133D4D
RGB	rgb(19, 61, 77)
HSL	hsl(197, 60%, 19%)
HSV	hsv(197, 75%, 30%)
CMYK	cmyk(75.3%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.71, -8.44, -13.96)
CIE-LCH	lch(23.71, 16.31, 238.86°)
OKLab	oklab(33.88% -0.0365 -0.0391)
OKLCH	oklch(33.88% 0.053 227)
XYZ	xyz(3.2763, 4.0114, 7.6213)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D4D #4D2313

analogous

#134D40 #133D4D #13204D

triadic

#133D4D #4D133D #3D4D13

tetradic

#133D4D #40134D #4D2313 #204D13

square

#133D4D #40134D #4D2313 #204D13

split-complementary

#133D4D #4D1320 #4D4013

monochromatic

#061319 #07161C #133D4D #1F647E #2B8BAF

Accessibility & contrast

On white

11.65

#133D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#133D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D4D

11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D4D	#FFFFFF	#000000	##FFFFFF
##133D4D	1.00	11.65	1.80	11.65
#FFFFFF	11.65	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4E

Deuteranopia (green-blind)

#2C364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133d4d;
/* rgb */ color: rgb(19, 61, 77);
/* oklch */ color: oklch(33.9% 0.053 227.0);

Tailwind

colors: {
  custom: {
    50: '#59727e',
    500: '#133d4d',
    950: '#000000',
  },
}

SCSS

$custom: #133d4d;
$custom-light: #59727e;
$custom-dark: #000000;

JSON

{
  "hex": "#133d4d",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 196.552,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.3388,
    "c": 0.05344,
    "h": 227
  },
  "luminance": 0.04012
}

Semantic roles & 50–950 ramp

primary

#133D4D

secondary

#864C36

accent

#7044E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133D4D

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

Preview Lab → · Contrast checker → · Palette generator →