#133A80#133A80

#133A80 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.126 H 261.0°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#133A80
RGB	rgb(19, 58, 128)
HSL	hsl(219, 74%, 29%)
HSV	hsv(219, 85%, 50%)
CMYK	cmyk(85.2%, 54.7%, 0%, 49.8%)
CIE-LAB	lab(25.93, 14.71, -43.32)
CIE-LCH	lch(25.93, 45.75, 288.76°)
OKLab	oklab(36.64% -0.0197 -0.1249)
OKLCH	oklch(36.64% 0.126 261)
XYZ	xyz(5.6765, 4.7224, 21.0302)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A80 #805913

analogous

#137180 #133A80 #231380

triadic

#133A80 #80133A #3A8013

tetradic

#133A80 #801371 #805913 #138023

square

#133A80 #801371 #805913 #138023

split-complementary

#133A80 #802313 #718013

monochromatic

#040C1B #0B224B #133A80 #1B52B5 #2D6DE0

Accessibility & contrast

On white

10.80

#133A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#133A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A80

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A80	#FFFFFF	#000000	##FFFFFF
##133A80	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044382

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133a80;
/* rgb */ color: rgb(19, 58, 128);
/* oklch */ color: oklch(36.6% 0.126 261.0);

Tailwind

colors: {
  custom: {
    50: '#656fa5',
    500: '#133a80',
    950: '#000000',
  },
}

SCSS

$custom: #133a80;
$custom-light: #656fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#133a80",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 128
  },
  "hsl": {
    "h": 218.532,
    "s": 74.15,
    "l": 28.824
  },
  "oklch": {
    "l": 0.36643,
    "c": 0.12646,
    "h": 261
  },
  "luminance": 0.04723
}

Semantic roles & 50–950 ramp

primary

#133A80

secondary

#B58939

accent

#AE37F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133A80

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

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