#133D7D#133D7D

#133D7D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.118 H 259.1°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#133D7D
RGB	rgb(19, 61, 125)
HSL	hsl(216, 74%, 28%)
HSV	hsv(216, 85%, 49%)
CMYK	cmyk(84.8%, 51.2%, 0%, 51%)
CIE-LAB	lab(26.61, 11.34, -40.33)
CIE-LCH	lch(26.61, 41.90, 285.70°)
OKLab	oklab(37.09% -0.0224 -0.1161)
OKLCH	oklch(37.09% 0.118 259.1)
XYZ	xyz(5.6376, 4.9559, 20.0575)
Luminance	0.0496 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D7D #7D5313

analogous

#13727D #133D7D #1E137D

triadic

#133D7D #7D133D #3D7D13

tetradic

#133D7D #7D1372 #7D5313 #137D1E

square

#133D7D #7D1372 #7D5313 #137D1E

split-complementary

#133D7D #7D1E13 #727D13

monochromatic

#040D1B #0B2348 #133D7D #1B57B2 #2C73DF

Accessibility & contrast

On white

10.55

#133D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#133D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D7D

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D7D	#FFFFFF	#000000	##FFFFFF
##133D7D	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16447F

Deuteranopia (green-blind)

#003A7C

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #133d7d;
/* rgb */ color: rgb(19, 61, 125);
/* oklch */ color: oklch(37.1% 0.118 259.1);

Tailwind

colors: {
  custom: {
    50: '#6471a3',
    500: '#133d7d',
    950: '#000000',
  },
}

SCSS

$custom: #133d7d;
$custom-light: #6471a3;
$custom-dark: #000000;

JSON

{
  "hex": "#133d7d",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 125
  },
  "hsl": {
    "h": 216.226,
    "s": 73.611,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37091,
    "c": 0.11823,
    "h": 259.1
  },
  "luminance": 0.04957
}

Semantic roles & 50–950 ramp

primary

#133D7D

secondary

#B38339

accent

#A738F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #133D7D

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

Preview Lab → · Contrast checker → · Palette generator →