#133A5A#133A5A

#133A5A is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.8% C 0.071 H 246.9°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#133A5A
RGB	rgb(19, 58, 90)
HSL	hsl(207, 65%, 21%)
HSV	hsv(207, 79%, 35%)
CMYK	cmyk(78.9%, 35.6%, 0%, 64.7%)
CIE-LAB	lab(23.35, -1.27, -23.09)
CIE-LCH	lch(23.35, 23.13, 266.86°)
OKLab	oklab(33.81% -0.028 -0.0655)
OKLCH	oklch(33.81% 0.071 246.9)
XYZ	xyz(3.6264, 3.9023, 10.2330)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A5A #5A3313

analogous

#135A57 #133A5A #13175A

triadic

#133A5A #5A133A #3A5A13

tetradic

#133A5A #57135A #5A3313 #175A13

square

#133A5A #57135A #5A3313 #175A13

split-complementary

#133A5A #5A1317 #5A5713

monochromatic

#051019 #081927 #133A5A #1E5B8D #287BBF

Accessibility & contrast

On white

11.79

#133A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#133A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A5A

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A5A	#FFFFFF	#000000	##FFFFFF
##133A5A	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3B5B

Deuteranopia (green-blind)

#213559

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133a5a;
/* rgb */ color: rgb(19, 58, 90);
/* oklch */ color: oklch(33.8% 0.071 246.9);

Tailwind

colors: {
  custom: {
    50: '#5c6f89',
    500: '#133a5a',
    950: '#000000',
  },
}

SCSS

$custom: #133a5a;
$custom-light: #5c6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#133a5a",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 90
  },
  "hsl": {
    "h": 207.042,
    "s": 65.138,
    "l": 21.373
  },
  "oklch": {
    "l": 0.33814,
    "c": 0.07124,
    "h": 246.9
  },
  "luminance": 0.03903
}

Semantic roles & 50–950 ramp

primary

#133A5A

secondary

#926037

accent

#8C40E8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133A5A

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

Preview Lab → · Contrast checker → · Palette generator →