#133C4B#133C4B

#133C4B is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.052 H 225.9°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#133C4B
RGB	rgb(19, 60, 75)
HSL	hsl(196, 60%, 18%)
HSV	hsv(196, 75%, 29%)
CMYK	cmyk(74.7%, 20%, 0%, 70.6%)
CIE-LAB	lab(23.26, -8.57, -13.32)
CIE-LCH	lch(23.26, 15.84, 237.26°)
OKLab	oklab(33.49% -0.0361 -0.0372)
OKLCH	oklch(33.49% 0.052 225.9)
XYZ	xyz(3.1539, 3.8778, 7.2375)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C4B #4B2213

analogous

#134B3E #133C4B #13204B

triadic

#133C4B #4B133C #3C4B13

tetradic

#133C4B #3E134B #4B2213 #204B13

square

#133C4B #3E134B #4B2213 #204B13

split-complementary

#133C4B #4B1320 #4B3E13

monochromatic

#061418 #07151A #133C4B #1F637C #2C8AAD

Accessibility & contrast

On white

11.83

#133C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#133C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C4B

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C4B	#FFFFFF	#000000	##FFFFFF
##133C4B	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343B4C

Deuteranopia (green-blind)

#2C354B

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133c4b;
/* rgb */ color: rgb(19, 60, 75);
/* oklch */ color: oklch(33.5% 0.052 225.9);

Tailwind

colors: {
  custom: {
    50: '#59717d',
    500: '#133c4b',
    950: '#000000',
  },
}

SCSS

$custom: #133c4b;
$custom-light: #59717d;
$custom-dark: #000000;

JSON

{
  "hex": "#133c4b",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 75
  },
  "hsl": {
    "h": 196.071,
    "s": 59.574,
    "l": 18.431
  },
  "oklch": {
    "l": 0.33493,
    "c": 0.05189,
    "h": 225.9
  },
  "luminance": 0.03878
}

Semantic roles & 50–950 ramp

primary

#133C4B

secondary

#844B36

accent

#6F45E3

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #133C4B

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

Preview Lab → · Contrast checker → · Palette generator →