#133A4A#133A4A

#133A4A is a dark, muted cyan. Relative luminance 0.037; OKLCH L 32.9% C 0.052 H 228.6°. Best body text is #FFFFFF at 12.13:1 contrast (WCAG AA passes).

Color values

HEX	#133A4A
RGB	rgb(19, 58, 74)
HSL	hsl(197, 59%, 18%)
HSV	hsv(197, 74%, 29%)
CMYK	cmyk(74.3%, 21.6%, 0%, 71%)
CIE-LAB	lab(22.51, -7.67, -13.82)
CIE-LCH	lch(22.51, 15.80, 240.96°)
OKLab	oklab(32.88% -0.0341 -0.0387)
OKLCH	oklch(32.88% 0.052 228.6)
XYZ	xyz(3.0172, 3.6586, 7.0244)
Luminance	0.0366 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A4A #4A2313

analogous

#134A3E #133A4A #131E4A

triadic

#133A4A #4A133A #3A4A13

tetradic

#133A4A #3E134A #4A2313 #1E4A13

square

#133A4A #3E134A #4A2313 #1E4A13

split-complementary

#133A4A #4A131E #4A3E13

monochromatic

#061318 #061419 #133A4A #20607B #2C86AB

Accessibility & contrast

On white

12.13

#133A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#133A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A4A

12.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A4A	#FFFFFF	#000000	##FFFFFF
##133A4A	1.00	12.13	1.73	12.13
#FFFFFF	12.13	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32394B

Deuteranopia (green-blind)

#2A334A

Tritanopia (blue-blind)

#003F3F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #133a4a;
/* rgb */ color: rgb(19, 58, 74);
/* oklch */ color: oklch(32.9% 0.052 228.6);

Tailwind

colors: {
  custom: {
    50: '#59707c',
    500: '#133a4a',
    950: '#000000',
  },
}

SCSS

$custom: #133a4a;
$custom-light: #59707c;
$custom-dark: #000000;

JSON

{
  "hex": "#133a4a",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 74
  },
  "hsl": {
    "h": 197.455,
    "s": 59.14,
    "l": 18.235
  },
  "oklch": {
    "l": 0.32875,
    "c": 0.05158,
    "h": 228.6
  },
  "luminance": 0.03659
}

Semantic roles & 50–950 ramp

primary

#133A4A

secondary

#834C36

accent

#7345E2

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #133A4A

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

Preview Lab → · Contrast checker → · Palette generator →