#133B66#133B66

#133B66 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.9% C 0.087 H 253.0°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#133B66
RGB	rgb(19, 59, 102)
HSL	hsl(211, 69%, 24%)
HSV	hsv(211, 81%, 40%)
CMYK	cmyk(81.4%, 42.2%, 0%, 60%)
CIE-LAB	lab(24.40, 3.04, -29.23)
CIE-LCH	lch(24.40, 29.38, 275.94°)
OKLab	oklab(34.88% -0.0254 -0.0835)
OKLCH	oklch(34.88% 0.087 253)
XYZ	xyz(4.2299, 4.2252, 13.1604)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B66 #663E13

analogous

#136466 #133B66 #141366

triadic

#133B66 #66133B #3B6613

tetradic

#133B66 #661364 #663E13 #136614

square

#133B66 #661364 #663E13 #136614

split-complementary

#133B66 #661413 #646613

monochromatic

#050F1A #091D32 #133B66 #1D599A #2677CD

Accessibility & contrast

On white

11.38

#133B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#133B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B66

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B66	#FFFFFF	#000000	##FFFFFF
##133B66	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263E68

Deuteranopia (green-blind)

#193665

Tritanopia (blue-blind)

#00454B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133b66;
/* rgb */ color: rgb(19, 59, 102);
/* oklch */ color: oklch(34.9% 0.087 253.0);

Tailwind

colors: {
  custom: {
    50: '#5f7092',
    500: '#133b66',
    950: '#000000',
  },
}

SCSS

$custom: #133b66;
$custom-light: #5f7092;
$custom-dark: #000000;

JSON

{
  "hex": "#133b66",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 102
  },
  "hsl": {
    "h": 211.084,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.34878,
    "c": 0.08725,
    "h": 253
  },
  "luminance": 0.04226
}

Semantic roles & 50–950 ramp

primary

#133B66

secondary

#9D6C37

accent

#973CEB

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #133B66

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

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