#133A73#133A73

#133A73 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.108 H 258.4°. Best body text is #FFFFFF at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#133A73
RGB	rgb(19, 58, 115)
HSL	hsl(216, 72%, 26%)
HSV	hsv(216, 83%, 45%)
CMYK	cmyk(83.5%, 49.6%, 0%, 54.9%)
CIE-LAB	lab(24.96, 9.23, -36.67)
CIE-LCH	lch(24.96, 37.82, 284.13°)
OKLab	oklab(35.59% -0.0216 -0.1054)
OKLCH	oklch(35.59% 0.108 258.4)
XYZ	xyz(4.8750, 4.4018, 16.8090)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A73 #734C13

analogous

#136A73 #133A73 #1C1373

triadic

#133A73 #73133A #3A7313

tetradic

#133A73 #73136A #734C13 #13731C

square

#133A73 #73136A #734C13 #13731C

split-complementary

#133A73 #731C13 #6A7313

monochromatic

#040D1A #0A203E #133A73 #1C54A8 #256FDB

Accessibility & contrast

On white

11.17

#133A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#133A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A73

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A73	#FFFFFF	#000000	##FFFFFF
##133A73	1.00	11.17	1.88	11.17
#FFFFFF	11.17	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4075

Deuteranopia (green-blind)

#003772

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #133a73;
/* rgb */ color: rgb(19, 58, 115);
/* oklch */ color: oklch(35.6% 0.108 258.4);

Tailwind

colors: {
  custom: {
    50: '#626f9c',
    500: '#133a73',
    950: '#000000',
  },
}

SCSS

$custom: #133a73;
$custom-light: #626f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#133a73",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 115
  },
  "hsl": {
    "h": 215.625,
    "s": 71.642,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3559,
    "c": 0.10757,
    "h": 258.4
  },
  "luminance": 0.04402
}

Semantic roles & 50–950 ramp

primary

#133A73

secondary

#AA7C38

accent

#A539EE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133A73

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

Preview Lab → · Contrast checker → · Palette generator →