#133C80#133C80

#133C80 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.124 H 260.1°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#133C80
RGB	rgb(19, 60, 128)
HSL	hsl(217, 74%, 29%)
HSV	hsv(217, 85%, 50%)
CMYK	cmyk(85.2%, 53.1%, 0%, 49.8%)
CIE-LAB	lab(26.53, 13.30, -42.35)
CIE-LCH	lch(26.53, 44.39, 287.44°)
OKLab	oklab(37.1% -0.0212 -0.122)
OKLCH	oklch(37.1% 0.124 260.1)
XYZ	xyz(5.7793, 4.9280, 21.0645)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C80 #805713

analogous

#137380 #133C80 #201380

triadic

#133C80 #80133C #3C8013

tetradic

#133C80 #801373 #805713 #138020

square

#133C80 #801373 #805713 #138020

split-complementary

#133C80 #802013 #738013

monochromatic

#040C1B #0B234B #133C80 #1B55B5 #2D71E0

Accessibility & contrast

On white

10.58

#133C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#133C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C80

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C80	#FFFFFF	#000000	##FFFFFF
##133C80	1.00	10.58	1.99	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4482

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #133c80;
/* rgb */ color: rgb(19, 60, 128);
/* oklch */ color: oklch(37.1% 0.124 260.1);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#133c80',
    950: '#000000',
  },
}

SCSS

$custom: #133c80;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#133c80",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 128
  },
  "hsl": {
    "h": 217.431,
    "s": 74.15,
    "l": 28.824
  },
  "oklch": {
    "l": 0.371,
    "c": 0.12385,
    "h": 260.1
  },
  "luminance": 0.04929
}

Semantic roles & 50–950 ramp

primary

#133C80

secondary

#B58739

accent

#AB37F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133C80

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

Preview Lab → · Contrast checker → · Palette generator →