#133D4F#133D4F

#133D4F is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.055 H 230.0°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#133D4F
RGB	rgb(19, 61, 79)
HSL	hsl(198, 61%, 19%)
HSV	hsv(198, 76%, 31%)
CMYK	cmyk(75.9%, 22.8%, 0%, 69%)
CIE-LAB	lab(23.80, -7.66, -15.14)
CIE-LCH	lch(23.80, 16.97, 243.14°)
OKLab	oklab(33.99% -0.0356 -0.0424)
OKLCH	oklch(33.99% 0.055 230)
XYZ	xyz(3.3480, 4.0401, 7.9990)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D4F #4F2513

analogous

#134F43 #133D4F #131F4F

triadic

#133D4F #4F133D #3D4F13

tetradic

#133D4F #43134F #4F2513 #1F4F13

square

#133D4F #43134F #4F2513 #1F4F13

split-complementary

#133D4F #4F131F #4F4313

monochromatic

#061319 #07171E #133D4F #1F6380 #2B89B2

Accessibility & contrast

On white

11.62

#133D4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133D4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D4F

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D4F	#FFFFFF	#000000	##FFFFFF
##133D4F	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C50

Deuteranopia (green-blind)

#2C364F

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133d4f;
/* rgb */ color: rgb(19, 61, 79);
/* oklch */ color: oklch(34.0% 0.055 230.0);

Tailwind

colors: {
  custom: {
    50: '#5a7280',
    500: '#133d4f',
    950: '#000000',
  },
}

SCSS

$custom: #133d4f;
$custom-light: #5a7280;
$custom-dark: #000000;

JSON

{
  "hex": "#133d4f",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 79
  },
  "hsl": {
    "h": 198,
    "s": 61.224,
    "l": 19.216
  },
  "oklch": {
    "l": 0.33987,
    "c": 0.05539,
    "h": 230
  },
  "luminance": 0.0404
}

Semantic roles & 50–950 ramp

primary

#133D4F

secondary

#884F36

accent

#7443E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133D4F

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

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