#133E81#133E81

#133E81 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 37.6% C 0.123 H 259.4°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#133E81
RGB	rgb(19, 62, 129)
HSL	hsl(217, 74%, 29%)
HSV	hsv(217, 85%, 51%)
CMYK	cmyk(85.3%, 51.9%, 0%, 49.4%)
CIE-LAB	lab(27.21, 12.32, -41.87)
CIE-LCH	lch(27.21, 43.65, 286.39°)
OKLab	oklab(37.64% -0.0226 -0.1206)
OKLCH	oklch(37.64% 0.123 259.4)
XYZ	xyz(5.9522, 5.1679, 21.4484)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133E81 #815613

analogous

#137581 #133E81 #1F1381

triadic

#133E81 #81133E #3E8113

tetradic

#133E81 #811375 #815613 #13811F

square

#133E81 #811375 #815613 #13811F

split-complementary

#133E81 #811F13 #758113

monochromatic

#040D1B #0B244C #133E81 #1B58B6 #2E74E0

Accessibility & contrast

On white

10.33

#133E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#133E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133E81

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133E81	#FFFFFF	#000000	##FFFFFF
##133E81	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134683

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #133e81;
/* rgb */ color: rgb(19, 62, 129);
/* oklch */ color: oklch(37.6% 0.123 259.4);

Tailwind

colors: {
  custom: {
    50: '#6672a6',
    500: '#133e81',
    950: '#000000',
  },
}

SCSS

$custom: #133e81;
$custom-light: #6672a6;
$custom-dark: #000000;

JSON

{
  "hex": "#133e81",
  "rgb": {
    "r": 19,
    "g": 62,
    "b": 129
  },
  "hsl": {
    "h": 216.545,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37644,
    "c": 0.12269,
    "h": 259.4
  },
  "luminance": 0.05169
}

Semantic roles & 50–950 ramp

primary

#133E81

secondary

#B6863A

accent

#A837F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133E81

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

Preview Lab → · Contrast checker → · Palette generator →