#133F4F#133F4F

#133F4F is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.5% C 0.055 H 226.0°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#133F4F
RGB	rgb(19, 63, 79)
HSL	hsl(196, 61%, 19%)
HSV	hsv(196, 76%, 31%)
CMYK	cmyk(75.9%, 20.3%, 0%, 69%)
CIE-LAB	lab(24.51, -8.93, -14.05)
CIE-LCH	lch(24.51, 16.65, 237.56°)
OKLab	oklab(34.55% -0.038 -0.0393)
OKLCH	oklch(34.55% 0.055 226)
XYZ	xyz(3.4568, 4.2576, 8.0352)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F4F #4F2313

analogous

#134F41 #133F4F #13214F

triadic

#133F4F #4F133F #3F4F13

tetradic

#133F4F #41134F #4F2313 #214F13

square

#133F4F #41134F #4F2313 #214F13

split-complementary

#133F4F #4F1321 #4F4113

monochromatic

#061419 #07181E #133F4F #1F6680 #2B8EB2

Accessibility & contrast

On white

11.34

#133F4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#133F4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F4F

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F4F	#FFFFFF	#000000	##FFFFFF
##133F4F	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E50

Deuteranopia (green-blind)

#2E384F

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133f4f;
/* rgb */ color: rgb(19, 63, 79);
/* oklch */ color: oklch(34.5% 0.055 226.0);

Tailwind

colors: {
  custom: {
    50: '#5a7480',
    500: '#133f4f',
    950: '#000000',
  },
}

SCSS

$custom: #133f4f;
$custom-light: #5a7480;
$custom-dark: #000000;

JSON

{
  "hex": "#133f4f",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 79
  },
  "hsl": {
    "h": 196,
    "s": 61.224,
    "l": 19.216
  },
  "oklch": {
    "l": 0.34547,
    "c": 0.05467,
    "h": 226
  },
  "luminance": 0.04258
}

Semantic roles & 50–950 ramp

primary

#133F4F

secondary

#884C36

accent

#6E43E4

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133F4F

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

Preview Lab → · Contrast checker → · Palette generator →