#133F5C#133F5C

#133F5C is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.069 H 241.7°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#133F5C
RGB	rgb(19, 63, 92)
HSL	hsl(204, 66%, 22%)
HSV	hsv(204, 79%, 36%)
CMYK	cmyk(79.3%, 31.5%, 0%, 63.9%)
CIE-LAB	lab(25.15, -3.81, -21.55)
CIE-LCH	lch(25.15, 21.89, 259.98°)
OKLab	oklab(35.28% -0.0328 -0.061)
OKLCH	oklch(35.28% 0.069 241.7)
XYZ	xyz(3.9771, 4.4657, 10.7755)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F5C #5C3013

analogous

#135C55 #133F5C #131A5C

triadic

#133F5C #5C133F #3F5C13

tetradic

#133F5C #55135C #5C3013 #1A5C13

square

#133F5C #55135C #5C3013 #1A5C13

split-complementary

#133F5C #5C131A #5C5513

monochromatic

#051119 #091C29 #133F5C #1D628F #2884C1

Accessibility & contrast

On white

11.09

#133F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#133F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F5C

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F5C	#FFFFFF	#000000	##FFFFFF
##133F5C	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323F5D

Deuteranopia (green-blind)

#28395B

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133f5c;
/* rgb */ color: rgb(19, 63, 92);
/* oklch */ color: oklch(35.3% 0.069 241.7);

Tailwind

colors: {
  custom: {
    50: '#5c738a',
    500: '#133f5c',
    950: '#000000',
  },
}

SCSS

$custom: #133f5c;
$custom-light: #5c738a;
$custom-dark: #000000;

JSON

{
  "hex": "#133f5c",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 92
  },
  "hsl": {
    "h": 203.836,
    "s": 65.766,
    "l": 21.765
  },
  "oklch": {
    "l": 0.35278,
    "c": 0.06921,
    "h": 241.7
  },
  "luminance": 0.04466
}

Semantic roles & 50–950 ramp

primary

#133F5C

secondary

#945C37

accent

#823FE9

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #133F5C

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

Preview Lab → · Contrast checker → · Palette generator →