#133571#133571

#133571 is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.111 H 260.8°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#133571
RGB	rgb(19, 53, 113)
HSL	hsl(218, 71%, 26%)
HSV	hsv(218, 83%, 44%)
CMYK	cmyk(83.2%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(23.26, 11.95, -38.14)
CIE-LCH	lch(23.26, 39.96, 287.39°)
OKLab	oklab(34.24% -0.0178 -0.1098)
OKLCH	oklch(34.24% 0.111 260.8)
XYZ	xyz(4.5212, 3.8764, 16.1295)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133571 #714F13

analogous

#136471 #133571 #201371

triadic

#133571 #711335 #357113

tetradic

#133571 #711364 #714F13 #137120

square

#133571 #711364 #714F13 #137120

split-complementary

#133571 #712013 #647113

monochromatic

#040C1A #0A1C3D #133571 #1C4EA5 #2566DA

Accessibility & contrast

On white

11.83

#133571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#133571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133571

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133571	#FFFFFF	#000000	##FFFFFF
##133571	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3C73

Deuteranopia (green-blind)

#003370

Tritanopia (blue-blind)

#00444D

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133571;
/* rgb */ color: rgb(19, 53, 113);
/* oklch */ color: oklch(34.2% 0.111 260.8);

Tailwind

colors: {
  custom: {
    50: '#626b9a',
    500: '#133571',
    950: '#000000',
  },
}

SCSS

$custom: #133571;
$custom-light: #626b9a;
$custom-dark: #000000;

JSON

{
  "hex": "#133571",
  "rgb": {
    "r": 19,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 218.298,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.3424,
    "c": 0.11122,
    "h": 260.8
  },
  "luminance": 0.03877
}

Semantic roles & 50–950 ramp

primary

#133571

secondary

#A87F38

accent

#AD3AEE

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #133571

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

Preview Lab → · Contrast checker → · Palette generator →