#133D4B#133D4B

#133D4B is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.8% C 0.052 H 223.7°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#133D4B
RGB	rgb(19, 61, 75)
HSL	hsl(195, 60%, 18%)
HSV	hsv(195, 75%, 29%)
CMYK	cmyk(74.7%, 18.7%, 0%, 70.6%)
CIE-LAB	lab(23.62, -9.20, -12.78)
CIE-LCH	lch(23.62, 15.74, 234.25°)
OKLab	oklab(33.78% -0.0373 -0.0357)
OKLCH	oklch(33.78% 0.052 223.7)
XYZ	xyz(3.2068, 3.9836, 7.2551)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D4B #4B2113

analogous

#134B3D #133D4B #13214B

triadic

#133D4B #4B133D #3D4B13

tetradic

#133D4B #3D134B #4B2113 #214B13

square

#133D4B #3D134B #4B2113 #214B13

split-complementary

#133D4B #4B1321 #4B3D13

monochromatic

#061418 #07151A #133D4B #1F657C #2C8CAD

Accessibility & contrast

On white

11.69

#133D4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#133D4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D4B

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D4B	#FFFFFF	#000000	##FFFFFF
##133D4B	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353B4C

Deuteranopia (green-blind)

#2D364B

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133d4b;
/* rgb */ color: rgb(19, 61, 75);
/* oklch */ color: oklch(33.8% 0.052 223.7);

Tailwind

colors: {
  custom: {
    50: '#59727d',
    500: '#133d4b',
    950: '#000000',
  },
}

SCSS

$custom: #133d4b;
$custom-light: #59727d;
$custom-dark: #000000;

JSON

{
  "hex": "#133d4b",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 75
  },
  "hsl": {
    "h": 195,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.33776,
    "c": 0.05166,
    "h": 223.7
  },
  "luminance": 0.03984
}

Semantic roles & 50–950 ramp

primary

#133D4B

secondary

#844A36

accent

#6C45E3

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040809

muted

#797B7B

Preview Lab

Preview with #133D4B

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

Preview Lab → · Contrast checker → · Palette generator →