#133B73#133B73

#133B73 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.106 H 257.8°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#133B73
RGB	rgb(19, 59, 115)
HSL	hsl(215, 72%, 26%)
HSV	hsv(215, 83%, 45%)
CMYK	cmyk(83.5%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(25.27, 8.53, -36.17)
CIE-LCH	lch(25.27, 37.16, 283.26°)
OKLab	oklab(35.83% -0.0225 -0.1039)
OKLCH	oklch(35.83% 0.106 257.8)
XYZ	xyz(4.9259, 4.5036, 16.8260)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B73 #734B13

analogous

#136B73 #133B73 #1B1373

triadic

#133B73 #73133B #3B7313

tetradic

#133B73 #73136B #734B13 #13731B

square

#133B73 #73136B #734B13 #13731B

split-complementary

#133B73 #731B13 #6B7313

monochromatic

#040D1A #0A203E #133B73 #1C56A8 #2571DB

Accessibility & contrast

On white

11.05

#133B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#133B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B73

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B73	#FFFFFF	#000000	##FFFFFF
##133B73	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4175

Deuteranopia (green-blind)

#033872

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133b73;
/* rgb */ color: rgb(19, 59, 115);
/* oklch */ color: oklch(35.8% 0.106 257.8);

Tailwind

colors: {
  custom: {
    50: '#62709c',
    500: '#133b73',
    950: '#000000',
  },
}

SCSS

$custom: #133b73;
$custom-light: #62709c;
$custom-dark: #000000;

JSON

{
  "hex": "#133b73",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 215,
    "s": 71.642,
    "l": 26.275
  },
  "oklch": {
    "l": 0.35832,
    "c": 0.10628,
    "h": 257.8
  },
  "luminance": 0.04504
}

Semantic roles & 50–950 ramp

primary

#133B73

secondary

#AA7A38

accent

#A339EE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133B73

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

Preview Lab → · Contrast checker → · Palette generator →