#133B51#133B51

#133B51 is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.059 H 236.5°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#133B51
RGB	rgb(19, 59, 81)
HSL	hsl(201, 62%, 20%)
HSV	hsv(201, 77%, 32%)
CMYK	cmyk(76.5%, 27.2%, 0%, 68.2%)
CIE-LAB	lab(23.20, -5.58, -17.39)
CIE-LCH	lch(23.20, 18.26, 252.20°)
OKLab	oklab(33.54% -0.0324 -0.0489)
OKLCH	oklch(33.54% 0.059 236.5)
XYZ	xyz(3.3171, 3.8601, 8.3532)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B51 #512913

analogous

#135148 #133B51 #131C51

triadic

#133B51 #51133B #3B5113

tetradic

#133B51 #481351 #512913 #1C5113

square

#133B51 #481351 #512913 #1C5113

split-complementary

#133B51 #51131C #514813

monochromatic

#061219 #07171F #133B51 #1F5F83 #2A83B4

Accessibility & contrast

On white

11.85

#133B51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#133B51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B51

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B51	#FFFFFF	#000000	##FFFFFF
##133B51	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313B52

Deuteranopia (green-blind)

#283551

Tritanopia (blue-blind)

#004142

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133b51;
/* rgb */ color: rgb(19, 59, 81);
/* oklch */ color: oklch(33.5% 0.059 236.5);

Tailwind

colors: {
  custom: {
    50: '#5a7082',
    500: '#133b51',
    950: '#000000',
  },
}

SCSS

$custom: #133b51;
$custom-light: #5a7082;
$custom-dark: #000000;

JSON

{
  "hex": "#133b51",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 81
  },
  "hsl": {
    "h": 201.29,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.33541,
    "c": 0.05869,
    "h": 236.5
  },
  "luminance": 0.0386
}

Semantic roles & 50–950 ramp

primary

#133B51

secondary

#8A5436

accent

#7C43E5

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #133B51

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

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