#133A7E#133A7E

#133A7E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.124 H 260.7°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#133A7E
RGB	rgb(19, 58, 126)
HSL	hsl(218, 74%, 28%)
HSV	hsv(218, 85%, 49%)
CMYK	cmyk(84.9%, 54%, 0%, 50.6%)
CIE-LAB	lab(25.77, 13.87, -42.31)
CIE-LCH	lch(25.77, 44.53, 288.15°)
OKLab	oklab(36.48% -0.0199 -0.122)
OKLCH	oklch(36.48% 0.124 260.7)
XYZ	xyz(5.5461, 4.6702, 20.3438)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A7E #7E5713

analogous

#136F7E #133A7E #21137E

triadic

#133A7E #7E133A #3A7E13

tetradic

#133A7E #7E136F #7E5713 #137E21

square

#133A7E #7E136F #7E5713 #137E21

split-complementary

#133A7E #7E2113 #6F7E13

monochromatic

#040C1B #0B2249 #133A7E #1B52B3 #2C6DDF

Accessibility & contrast

On white

10.86

#133A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#133A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A7E

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A7E	#FFFFFF	#000000	##FFFFFF
##133A7E	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094280

Deuteranopia (green-blind)

#00387D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133a7e;
/* rgb */ color: rgb(19, 58, 126);
/* oklch */ color: oklch(36.5% 0.124 260.7);

Tailwind

colors: {
  custom: {
    50: '#656fa4',
    500: '#133a7e',
    950: '#000000',
  },
}

SCSS

$custom: #133a7e;
$custom-light: #656fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#133a7e",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 126
  },
  "hsl": {
    "h": 218.131,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36476,
    "c": 0.12359,
    "h": 260.7
  },
  "luminance": 0.04671
}

Semantic roles & 50–950 ramp

primary

#133A7E

secondary

#B48739

accent

#AD37F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133A7E

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

Preview Lab → · Contrast checker → · Palette generator →