#133C5B#133C5B

#133C5B is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.071 H 245.0°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#133C5B
RGB	rgb(19, 60, 91)
HSL	hsl(206, 65%, 22%)
HSV	hsv(206, 79%, 36%)
CMYK	cmyk(79.1%, 34.1%, 0%, 64.3%)
CIE-LAB	lab(24.08, -2.21, -22.59)
CIE-LCH	lch(24.08, 22.70, 264.40°)
OKLab	oklab(34.41% -0.0298 -0.064)
OKLCH	oklch(34.41% 0.071 245)
XYZ	xyz(3.7720, 4.1251, 10.4929)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C5B #5B3213

analogous

#135B56 #133C5B #13185B

triadic

#133C5B #5B133C #3C5B13

tetradic

#133C5B #56135B #5B3213 #185B13

square

#133C5B #56135B #5B3213 #185B13

split-complementary

#133C5B #5B1318 #5B5613

monochromatic

#051119 #081B28 #133C5B #1E5D8E #287FC0

Accessibility & contrast

On white

11.51

#133C5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#133C5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C5B

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C5B	#FFFFFF	#000000	##FFFFFF
##133C5B	1.00	11.51	1.83	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E3D5C

Deuteranopia (green-blind)

#24365A

Tritanopia (blue-blind)

#004447

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133c5b;
/* rgb */ color: rgb(19, 60, 91);
/* oklch */ color: oklch(34.4% 0.071 245.0);

Tailwind

colors: {
  custom: {
    50: '#5c7189',
    500: '#133c5b',
    950: '#000000',
  },
}

SCSS

$custom: #133c5b;
$custom-light: #5c7189;
$custom-dark: #000000;

JSON

{
  "hex": "#133c5b",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 91
  },
  "hsl": {
    "h": 205.833,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34411,
    "c": 0.07063,
    "h": 245
  },
  "luminance": 0.04125
}

Semantic roles & 50–950 ramp

primary

#133C5B

secondary

#935E37

accent

#883FE8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133C5B

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

Preview Lab → · Contrast checker → · Palette generator →