#133B63#133B63

#133B63 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.083 H 251.5°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#133B63
RGB	rgb(19, 59, 99)
HSL	hsl(210, 68%, 23%)
HSV	hsv(210, 81%, 39%)
CMYK	cmyk(80.8%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(24.22, 1.78, -27.58)
CIE-LCH	lch(24.22, 27.64, 273.70°)
OKLab	oklab(34.67% -0.0263 -0.0786)
OKLCH	oklch(34.67% 0.083 251.5)
XYZ	xyz(4.0838, 4.1668, 12.3910)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B63 #633B13

analogous

#136363 #133B63 #131363

triadic

#133B63 #63133B #3B6313

tetradic

#133B63 #631363 #633B13 #136313

square

#133B63 #631363 #633B13 #136313

split-complementary

#133B63 #631313 #636313

monochromatic

#050F1A #091C30 #133B63 #1D5A96 #2778CA

Accessibility & contrast

On white

11.45

#133B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#133B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B63

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B63	#FFFFFF	#000000	##FFFFFF
##133B63	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283E65

Deuteranopia (green-blind)

#1C3662

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133b63;
/* rgb */ color: rgb(19, 59, 99);
/* oklch */ color: oklch(34.7% 0.083 251.5);

Tailwind

colors: {
  custom: {
    50: '#5e708f',
    500: '#133b63',
    950: '#000000',
  },
}

SCSS

$custom: #133b63;
$custom-light: #5e708f;
$custom-dark: #000000;

JSON

{
  "hex": "#133b63",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 210,
    "s": 67.797,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34671,
    "c": 0.08291,
    "h": 251.5
  },
  "luminance": 0.04167
}

Semantic roles & 50–950 ramp

primary

#133B63

secondary

#9B6937

accent

#943DEB

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #133B63

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

Preview Lab → · Contrast checker → · Palette generator →