#133B7C#133B7C

#133B7C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.119 H 259.9°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#133B7C
RGB	rgb(19, 59, 124)
HSL	hsl(217, 73%, 28%)
HSV	hsv(217, 85%, 49%)
CMYK	cmyk(84.7%, 52.4%, 0%, 51.4%)
CIE-LAB	lab(25.92, 12.33, -40.81)
CIE-LCH	lch(25.92, 42.63, 286.81°)
OKLab	oklab(36.54% -0.021 -0.1175)
OKLCH	oklch(36.54% 0.119 259.9)
XYZ	xyz(5.4693, 4.7209, 19.6879)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B7C #7C5413

analogous

#136F7C #133B7C #1F137C

triadic

#133B7C #7C133B #3B7C13

tetradic

#133B7C #7C136F #7C5413 #137C1F

square

#133B7C #7C136F #7C5413 #137C1F

split-complementary

#133B7C #7C1F13 #6F7C13

monochromatic

#040D1B #0B2247 #133B7C #1B54B1 #2B6FDF

Accessibility & contrast

On white

10.80

#133B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#133B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7C

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B7C	#FFFFFF	#000000	##FFFFFF
##133B7C	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)

#11427E

Deuteranopia (green-blind)

#00397B

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133b7c;
/* rgb */ color: rgb(19, 59, 124);
/* oklch */ color: oklch(36.5% 0.119 259.9);

Tailwind

colors: {
  custom: {
    50: '#6470a2',
    500: '#133b7c',
    950: '#000000',
  },
}

SCSS

$custom: #133b7c;
$custom-light: #6470a2;
$custom-dark: #000000;

JSON

{
  "hex": "#133b7c",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 124
  },
  "hsl": {
    "h": 217.143,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36543,
    "c": 0.11939,
    "h": 259.9
  },
  "luminance": 0.04722
}

Semantic roles & 50–950 ramp

primary

#133B7C

secondary

#B28439

accent

#AA38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #133B7C

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

Preview Lab → · Contrast checker → · Palette generator →