#133D5A#133D5A

#133D5A is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.068 H 242.8°. Best body text is #FFFFFF at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#133D5A
RGB	rgb(19, 61, 90)
HSL	hsl(205, 65%, 21%)
HSV	hsv(205, 79%, 35%)
CMYK	cmyk(78.9%, 32.2%, 0%, 64.7%)
CIE-LAB	lab(24.37, -3.29, -21.49)
CIE-LCH	lch(24.37, 21.74, 261.30°)
OKLab	oklab(34.62% -0.0313 -0.0608)
OKLCH	oklch(34.62% 0.068 242.8)
XYZ	xyz(3.7821, 4.2137, 10.2849)
Luminance	0.0421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D5A #5A3013

analogous

#135A54 #133D5A #131A5A

triadic

#133D5A #5A133D #3D5A13

tetradic

#133D5A #54135A #5A3013 #1A5A13

square

#133D5A #54135A #5A3013 #1A5A13

split-complementary

#133D5A #5A131A #5A5413

monochromatic

#051119 #081B27 #133D5A #1E5F8D #2882BF

Accessibility & contrast

On white

11.40

#133D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#133D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D5A

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D5A	#FFFFFF	#000000	##FFFFFF
##133D5A	1.00	11.40	1.84	11.40
#FFFFFF	11.40	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303E5B

Deuteranopia (green-blind)

#263759

Tritanopia (blue-blind)

#004447

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133d5a;
/* rgb */ color: rgb(19, 61, 90);
/* oklch */ color: oklch(34.6% 0.068 242.8);

Tailwind

colors: {
  custom: {
    50: '#5c7289',
    500: '#133d5a',
    950: '#000000',
  },
}

SCSS

$custom: #133d5a;
$custom-light: #5c7289;
$custom-dark: #000000;

JSON

{
  "hex": "#133d5a",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 90
  },
  "hsl": {
    "h": 204.507,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34618,
    "c": 0.06838,
    "h": 242.8
  },
  "luminance": 0.04214
}

Semantic roles & 50–950 ramp

primary

#133D5A

secondary

#925C37

accent

#8440E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133D5A

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

Preview Lab → · Contrast checker → · Palette generator →