#133F4D#133F4D

#133F4D is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.053 H 222.8°. Best body text is #FFFFFF at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#133F4D
RGB	rgb(19, 63, 77)
HSL	hsl(194, 60%, 19%)
HSV	hsv(194, 75%, 30%)
CMYK	cmyk(75.3%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(24.41, -9.69, -12.87)
CIE-LCH	lch(24.41, 16.12, 233.02°)
OKLab	oklab(34.44% -0.0389 -0.036)
OKLCH	oklch(34.44% 0.053 222.8)
XYZ	xyz(3.3851, 4.2289, 7.6576)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F4D #4D2113

analogous

#134D3E #133F4D #13224D

triadic

#133F4D #4D133F #3F4D13

tetradic

#133F4D #3E134D #4D2113 #224D13

square

#133F4D #3E134D #4D2113 #224D13

split-complementary

#133F4D #4D1322 #4D3E13

monochromatic

#061419 #07171C #133F4D #1F677E #2B8FAF

Accessibility & contrast

On white

11.38

#133F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#133F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F4D

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F4D	#FFFFFF	#000000	##FFFFFF
##133F4D	1.00	11.38	1.85	11.38
#FFFFFF	11.38	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4E

Deuteranopia (green-blind)

#2F374D

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133f4d;
/* rgb */ color: rgb(19, 63, 77);
/* oklch */ color: oklch(34.4% 0.053 222.8);

Tailwind

colors: {
  custom: {
    50: '#5a747e',
    500: '#133f4d',
    950: '#000000',
  },
}

SCSS

$custom: #133f4d;
$custom-light: #5a747e;
$custom-dark: #000000;

JSON

{
  "hex": "#133f4d",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 194.483,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.34444,
    "c": 0.05295,
    "h": 222.8
  },
  "luminance": 0.04229
}

Semantic roles & 50–950 ramp

primary

#133F4D

secondary

#864936

accent

#6B44E4

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133F4D

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

Preview Lab → · Contrast checker → · Palette generator →