#133B7A#133B7A

#133B7A is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.116 H 259.5°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#133B7A
RGB	rgb(19, 59, 122)
HSL	hsl(217, 73%, 28%)
HSV	hsv(217, 84%, 48%)
CMYK	cmyk(84.4%, 51.6%, 0%, 52.2%)
CIE-LAB	lab(25.78, 11.48, -39.79)
CIE-LCH	lch(25.78, 41.41, 286.10°)
OKLab	oklab(36.38% -0.0213 -0.1145)
OKLCH	oklch(36.38% 0.116 259.5)
XYZ	xyz(5.3441, 4.6709, 19.0285)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B7A #7A5213

analogous

#136F7A #133B7A #1E137A

triadic

#133B7A #7A133B #3B7A13

tetradic

#133B7A #7A136F #7A5213 #137A1E

square

#133B7A #7A136F #7A5213 #137A1E

split-complementary

#133B7A #7A1E13 #6F7A13

monochromatic

#040D1A #0B2145 #133B7A #1B55AF #2A70DE

Accessibility & contrast

On white

10.86

#133B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#133B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7A

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B7A	#FFFFFF	#000000	##FFFFFF
##133B7A	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)

#14427C

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133b7a;
/* rgb */ color: rgb(19, 59, 122);
/* oklch */ color: oklch(36.4% 0.116 259.5);

Tailwind

colors: {
  custom: {
    50: '#6470a1',
    500: '#133b7a',
    950: '#000000',
  },
}

SCSS

$custom: #133b7a;
$custom-light: #6470a1;
$custom-dark: #000000;

JSON

{
  "hex": "#133b7a",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 122
  },
  "hsl": {
    "h": 216.699,
    "s": 73.05,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36381,
    "c": 0.11648,
    "h": 259.5
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#133B7A

secondary

#B08239

accent

#A838F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #133B7A

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

Preview Lab → · Contrast checker → · Palette generator →