#133771#133771

#133771 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 34.7% C 0.109 H 259.7°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#133771
RGB	rgb(19, 55, 113)
HSL	hsl(217, 71%, 26%)
HSV	hsv(217, 83%, 44%)
CMYK	cmyk(83.2%, 51.3%, 0%, 55.7%)
CIE-LAB	lab(23.88, 10.52, -37.14)
CIE-LCH	lch(23.88, 38.60, 285.81°)
OKLab	oklab(34.71% -0.0194 -0.1068)
OKLCH	oklch(34.71% 0.109 259.7)
XYZ	xyz(4.6143, 4.0625, 16.1605)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133771 #714D13

analogous

#136671 #133771 #1E1371

triadic

#133771 #711337 #377113

tetradic

#133771 #711366 #714D13 #13711E

square

#133771 #711366 #714D13 #13711E

split-complementary

#133771 #711E13 #667113

monochromatic

#040D1A #0A1D3D #133771 #1C50A5 #256ADA

Accessibility & contrast

On white

11.59

#133771 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133771 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133771

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133771	#FFFFFF	#000000	##FFFFFF
##133771	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153D73

Deuteranopia (green-blind)

#003570

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133771;
/* rgb */ color: rgb(19, 55, 113);
/* oklch */ color: oklch(34.7% 0.109 259.7);

Tailwind

colors: {
  custom: {
    50: '#626d9a',
    500: '#133771',
    950: '#000000',
  },
}

SCSS

$custom: #133771;
$custom-light: #626d9a;
$custom-dark: #000000;

JSON

{
  "hex": "#133771",
  "rgb": {
    "r": 19,
    "g": 55,
    "b": 113
  },
  "hsl": {
    "h": 217.021,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.34714,
    "c": 0.10856,
    "h": 259.7
  },
  "luminance": 0.04063
}

Semantic roles & 50–950 ramp

primary

#133771

secondary

#A87D38

accent

#A93AEE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133771

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

Preview Lab → · Contrast checker → · Palette generator →