#133981#133981

#133981 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.5% C 0.129 H 261.6°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#133981
RGB	rgb(19, 57, 129)
HSL	hsl(219, 74%, 29%)
HSV	hsv(219, 85%, 51%)
CMYK	cmyk(85.3%, 55.8%, 0%, 49.4%)
CIE-LAB	lab(25.71, 15.84, -44.30)
CIE-LCH	lch(25.71, 47.05, 289.68°)
OKLab	oklab(36.5% -0.0189 -0.1278)
OKLCH	oklch(36.5% 0.129 261.6)
XYZ	xyz(5.6927, 4.6490, 21.3619)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133981 #815B13

analogous

#137081 #133981 #241381

triadic

#133981 #811339 #398113

tetradic

#133981 #811370 #815B13 #138124

square

#133981 #811370 #815B13 #138124

split-complementary

#133981 #812413 #708113

monochromatic

#040C1B #0B214C #133981 #1B51B6 #2E6CE0

Accessibility & contrast

On white

10.88

#133981 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#133981 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133981

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133981	#FFFFFF	#000000	##FFFFFF
##133981	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004284

Deuteranopia (green-blind)

#003880

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133981;
/* rgb */ color: rgb(19, 57, 129);
/* oklch */ color: oklch(36.5% 0.129 261.6);

Tailwind

colors: {
  custom: {
    50: '#666ea6',
    500: '#133981',
    950: '#000000',
  },
}

SCSS

$custom: #133981;
$custom-light: #666ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#133981",
  "rgb": {
    "r": 19,
    "g": 57,
    "b": 129
  },
  "hsl": {
    "h": 219.273,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36502,
    "c": 0.12922,
    "h": 261.6
  },
  "luminance": 0.0465
}

Semantic roles & 50–950 ramp

primary

#133981

secondary

#B68B3A

accent

#B137F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133981

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

Preview Lab → · Contrast checker → · Palette generator →