#133B5A#133B5A

#133B5A is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.070 H 245.5°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#133B5A
RGB	rgb(19, 59, 90)
HSL	hsl(206, 65%, 21%)
HSV	hsv(206, 79%, 35%)
CMYK	cmyk(78.9%, 34.4%, 0%, 64.7%)
CIE-LAB	lab(23.68, -1.95, -22.56)
CIE-LCH	lch(23.68, 22.64, 265.07°)
OKLab	oklab(34.08% -0.0291 -0.0639)
OKLCH	oklch(34.08% 0.07 245.5)
XYZ	xyz(3.6773, 4.0041, 10.2500)
Luminance	0.0401 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5A #5A3213

analogous

#135A56 #133B5A #13185A

triadic

#133B5A #5A133B #3B5A13

tetradic

#133B5A #56135A #5A3213 #185A13

square

#133B5A #56135A #5A3213 #185A13

split-complementary

#133B5A #5A1318 #5A5613

monochromatic

#051119 #081A27 #133B5A #1E5C8D #287DBF

Accessibility & contrast

On white

11.66

#133B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#133B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5A

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5A	#FFFFFF	#000000	##FFFFFF
##133B5A	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5B

Deuteranopia (green-blind)

#233559

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133b5a;
/* rgb */ color: rgb(19, 59, 90);
/* oklch */ color: oklch(34.1% 0.070 245.5);

Tailwind

colors: {
  custom: {
    50: '#5c7089',
    500: '#133b5a',
    950: '#000000',
  },
}

SCSS

$custom: #133b5a;
$custom-light: #5c7089;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5a",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 90
  },
  "hsl": {
    "h": 206.197,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.34081,
    "c": 0.07024,
    "h": 245.5
  },
  "luminance": 0.04005
}

Semantic roles & 50–950 ramp

primary

#133B5A

secondary

#925F37

accent

#8940E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133B5A

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

Preview Lab → · Contrast checker → · Palette generator →