#133D7C#133D7C

#133D7C is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.117 H 258.9°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).

Color values

HEX	#133D7C
RGB	rgb(19, 61, 124)
HSL	hsl(216, 73%, 28%)
HSV	hsv(216, 85%, 49%)
CMYK	cmyk(84.7%, 50.8%, 0%, 51.4%)
CIE-LAB	lab(26.54, 10.92, -39.82)
CIE-LCH	lch(26.54, 41.29, 285.33°)
OKLab	oklab(37.01% -0.0226 -0.1146)
OKLCH	oklch(37.01% 0.117 258.9)
XYZ	xyz(5.5741, 4.9305, 19.7228)
Luminance	0.0493 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D7C #7C5213

analogous

#13717C #133D7C #1D137C

triadic

#133D7C #7C133D #3D7C13

tetradic

#133D7C #7C1371 #7C5213 #137C1D

square

#133D7C #7C1371 #7C5213 #137C1D

split-complementary

#133D7C #7C1D13 #717C13

monochromatic

#040D1B #0B2347 #133D7C #1B57B1 #2B73DF

Accessibility & contrast

On white

10.57

#133D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#133D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D7C

10.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D7C	#FFFFFF	#000000	##FFFFFF
##133D7C	1.00	10.57	1.99	10.57
#FFFFFF	10.57	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17447E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #133d7c;
/* rgb */ color: rgb(19, 61, 124);
/* oklch */ color: oklch(37.0% 0.117 258.9);

Tailwind

colors: {
  custom: {
    50: '#6471a2',
    500: '#133d7c',
    950: '#000000',
  },
}

SCSS

$custom: #133d7c;
$custom-light: #6471a2;
$custom-dark: #000000;

JSON

{
  "hex": "#133d7c",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 216,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37011,
    "c": 0.11678,
    "h": 258.9
  },
  "luminance": 0.04931
}

Semantic roles & 50–950 ramp

primary

#133D7C

secondary

#B28139

accent

#A638F0

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #133D7C

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

Preview Lab → · Contrast checker → · Palette generator →