#133881#133881

#133881 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.131 H 262.0°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#133881
RGB	rgb(19, 56, 129)
HSL	hsl(220, 74%, 29%)
HSV	hsv(220, 85%, 51%)
CMYK	cmyk(85.3%, 56.6%, 0%, 49.4%)
CIE-LAB	lab(25.42, 16.55, -44.78)
CIE-LCH	lch(25.42, 47.74, 290.29°)
OKLab	oklab(36.28% -0.0182 -0.1293)
OKLCH	oklch(36.28% 0.131 262)
XYZ	xyz(5.6438, 4.5511, 21.3456)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133881 #815C13

analogous

#136F81 #133881 #251381

triadic

#133881 #811338 #388113

tetradic

#133881 #81136F #815C13 #138125

square

#133881 #81136F #815C13 #138125

split-complementary

#133881 #812513 #6F8113

monochromatic

#040C1B #0B214C #133881 #1B4FB6 #2E6AE0

Accessibility & contrast

On white

10.99

#133881 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#133881 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133881

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133881	#FFFFFF	#000000	##FFFFFF
##133881	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004184

Deuteranopia (green-blind)

#003780

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133881;
/* rgb */ color: rgb(19, 56, 129);
/* oklch */ color: oklch(36.3% 0.131 262.0);

Tailwind

colors: {
  custom: {
    50: '#666ea6',
    500: '#133881',
    950: '#000000',
  },
}

SCSS

$custom: #133881;
$custom-light: #666ea6;
$custom-dark: #000000;

JSON

{
  "hex": "#133881",
  "rgb": {
    "r": 19,
    "g": 56,
    "b": 129
  },
  "hsl": {
    "h": 219.818,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36278,
    "c": 0.13053,
    "h": 262
  },
  "luminance": 0.04552
}

Semantic roles & 50–950 ramp

primary

#133881

secondary

#B68C3A

accent

#B237F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133881

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

Preview Lab → · Contrast checker → · Palette generator →