#133781#133781

#133781 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.132 H 262.4°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#133781
RGB	rgb(19, 55, 129)
HSL	hsl(220, 74%, 29%)
HSV	hsv(220, 85%, 51%)
CMYK	cmyk(85.3%, 57.4%, 0%, 49.4%)
CIE-LAB	lab(25.12, 17.26, -45.25)
CIE-LCH	lch(25.12, 48.43, 290.88°)
OKLab	oklab(36.06% -0.0175 -0.1307)
OKLCH	oklch(36.06% 0.132 262.4)
XYZ	xyz(5.5958, 4.4551, 21.3296)
Luminance	0.0446 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133781 #815D13

analogous

#136E81 #133781 #261381

triadic

#133781 #811337 #378113

tetradic

#133781 #81136E #815D13 #138126

square

#133781 #81136E #815D13 #138126

split-complementary

#133781 #812613 #6E8113

monochromatic

#040B1B #0B204C #133781 #1B4EB6 #2E68E0

Accessibility & contrast

On white

11.10

#133781 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#133781 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133781

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133781	#FFFFFF	#000000	##FFFFFF
##133781	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003780

Tritanopia (blue-blind)

#004956

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133781;
/* rgb */ color: rgb(19, 55, 129);
/* oklch */ color: oklch(36.1% 0.132 262.4);

Tailwind

colors: {
  custom: {
    50: '#666da6',
    500: '#133781',
    950: '#000000',
  },
}

SCSS

$custom: #133781;
$custom-light: #666da6;
$custom-dark: #000000;

JSON

{
  "hex": "#133781",
  "rgb": {
    "r": 19,
    "g": 55,
    "b": 129
  },
  "hsl": {
    "h": 220.364,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36056,
    "c": 0.13184,
    "h": 262.4
  },
  "luminance": 0.04456
}

Semantic roles & 50–950 ramp

primary

#133781

secondary

#B68D3A

accent

#B437F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133781

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

Preview Lab → · Contrast checker → · Palette generator →