#133B5D#133B5D

#133B5D is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.074 H 247.8°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#133B5D
RGB	rgb(19, 59, 93)
HSL	hsl(208, 66%, 22%)
HSV	hsv(208, 80%, 36%)
CMYK	cmyk(79.6%, 36.6%, 0%, 63.5%)
CIE-LAB	lab(23.86, -0.71, -24.25)
CIE-LCH	lch(23.86, 24.26, 268.32°)
OKLab	oklab(34.27% -0.0281 -0.0689)
OKLCH	oklch(34.27% 0.074 247.8)
XYZ	xyz(3.8076, 4.0563, 10.9361)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5D #5D3513

analogous

#135D5A #133B5D #13165D

triadic

#133B5D #5D133B #3B5D13

tetradic

#133B5D #5A135D #5D3513 #165D13

square

#133B5D #5A135D #5D3513 #165D13

split-complementary

#133B5D #5D1316 #5D5A13

monochromatic

#051019 #091B2A #133B5D #1D5B90 #287BC3

Accessibility & contrast

On white

11.59

#133B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5D

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5D	#FFFFFF	#000000	##FFFFFF
##133B5D	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3D5E

Deuteranopia (green-blind)

#21365C

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133b5d;
/* rgb */ color: rgb(19, 59, 93);
/* oklch */ color: oklch(34.3% 0.074 247.8);

Tailwind

colors: {
  custom: {
    50: '#5c708b',
    500: '#133b5d',
    950: '#000000',
  },
}

SCSS

$custom: #133b5d;
$custom-light: #5c708b;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5d",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 93
  },
  "hsl": {
    "h": 207.568,
    "s": 66.071,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34272,
    "c": 0.07439,
    "h": 247.8
  },
  "luminance": 0.04057
}

Semantic roles & 50–950 ramp

primary

#133B5D

secondary

#956237

accent

#8D3FE9

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #133B5D

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

Preview Lab → · Contrast checker → · Palette generator →