#133B4F#133B4F

#133B4F is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.4% C 0.056 H 233.9°. Best body text is #FFFFFF at 11.89:1 contrast (WCAG AA passes).

Color values

HEX	#133B4F
RGB	rgb(19, 59, 79)
HSL	hsl(200, 61%, 19%)
HSV	hsv(200, 76%, 31%)
CMYK	cmyk(75.9%, 25.3%, 0%, 69%)
CIE-LAB	lab(23.10, -6.37, -16.22)
CIE-LCH	lch(23.10, 17.43, 248.55°)
OKLab	oklab(33.43% -0.0332 -0.0456)
OKLCH	oklch(33.43% 0.056 233.9)
XYZ	xyz(3.2432, 3.8305, 7.9641)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B4F #4F2713

analogous

#134F45 #133B4F #131D4F

triadic

#133B4F #4F133B #3B4F13

tetradic

#133B4F #45134F #4F2713 #1D4F13

square

#133B4F #45134F #4F2713 #1D4F13

split-complementary

#133B4F #4F131D #4F4513

monochromatic

#061219 #07161E #133B4F #1F6080 #2B85B2

Accessibility & contrast

On white

11.89

#133B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#133B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B4F

11.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B4F	#FFFFFF	#000000	##FFFFFF
##133B4F	1.00	11.89	1.77	11.89
#FFFFFF	11.89	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313A50

Deuteranopia (green-blind)

#29344F

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133b4f;
/* rgb */ color: rgb(19, 59, 79);
/* oklch */ color: oklch(33.4% 0.056 233.9);

Tailwind

colors: {
  custom: {
    50: '#5a7080',
    500: '#133b4f',
    950: '#000000',
  },
}

SCSS

$custom: #133b4f;
$custom-light: #5a7080;
$custom-dark: #000000;

JSON

{
  "hex": "#133b4f",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 200,
    "s": 61.224,
    "l": 19.216
  },
  "oklch": {
    "l": 0.33428,
    "c": 0.05639,
    "h": 233.9
  },
  "luminance": 0.03831
}

Semantic roles & 50–950 ramp

primary

#133B4F

secondary

#885136

accent

#7943E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #133B4F

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

Preview Lab → · Contrast checker → · Palette generator →