#133D57#133D57

#133D57 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.4% C 0.065 H 239.9°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#133D57
RGB	rgb(19, 61, 87)
HSL	hsl(203, 64%, 21%)
HSV	hsv(203, 78%, 34%)
CMYK	cmyk(78.2%, 29.9%, 0%, 65.9%)
CIE-LAB	lab(24.21, -4.50, -19.78)
CIE-LCH	lch(24.21, 20.28, 257.18°)
OKLab	oklab(34.44% -0.0324 -0.0558)
OKLCH	oklch(34.44% 0.065 239.9)
XYZ	xyz(3.6569, 4.1636, 9.6259)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D57 #572D13

analogous

#13574F #133D57 #131B57

triadic

#133D57 #57133D #3D5713

tetradic

#133D57 #4F1357 #572D13 #1B5713

square

#133D57 #4F1357 #572D13 #1B5713

split-complementary

#133D57 #57131B #574F13

monochromatic

#051219 #081A25 #133D57 #1E6089 #2983BB

Accessibility & contrast

On white

11.46

#133D57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#133D57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D57

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D57	#FFFFFF	#000000	##FFFFFF
##133D57	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D58

Deuteranopia (green-blind)

#283757

Tritanopia (blue-blind)

#004446

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133d57;
/* rgb */ color: rgb(19, 61, 87);
/* oklch */ color: oklch(34.4% 0.065 239.9);

Tailwind

colors: {
  custom: {
    50: '#5b7286',
    500: '#133d57',
    950: '#000000',
  },
}

SCSS

$custom: #133d57;
$custom-light: #5b7286;
$custom-dark: #000000;

JSON

{
  "hex": "#133d57",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 87
  },
  "hsl": {
    "h": 202.941,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34439,
    "c": 0.06455,
    "h": 239.9
  },
  "luminance": 0.04164
}

Semantic roles & 50–950 ramp

primary

#133D57

secondary

#8F5836

accent

#8041E7

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133D57

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

Preview Lab → · Contrast checker → · Palette generator →