#133A5D#133A5D

#133A5D is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.075 H 249.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#133A5D
RGB	rgb(19, 58, 93)
HSL	hsl(208, 66%, 22%)
HSV	hsv(208, 80%, 36%)
CMYK	cmyk(79.6%, 37.6%, 0%, 63.5%)
CIE-LAB	lab(23.52, -0.03, -24.78)
CIE-LCH	lch(23.52, 24.78, 269.94°)
OKLab	oklab(34.01% -0.027 -0.0704)
OKLCH	oklch(34.01% 0.075 249)
XYZ	xyz(3.7567, 3.9544, 10.9191)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A5D #5D3613

analogous

#135D5B #133A5D #13155D

triadic

#133A5D #5D133A #3A5D13

tetradic

#133A5D #5B135D #5D3613 #155D13

square

#133A5D #5B135D #5D3613 #155D13

split-complementary

#133A5D #5D1315 #5D5B13

monochromatic

#051019 #091A2A #133A5D #1D5A90 #2879C3

Accessibility & contrast

On white

11.73

#133A5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#133A5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A5D

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A5D	#FFFFFF	#000000	##FFFFFF
##133A5D	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3C5E

Deuteranopia (green-blind)

#1F355C

Tritanopia (blue-blind)

#004247

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133a5d;
/* rgb */ color: rgb(19, 58, 93);
/* oklch */ color: oklch(34.0% 0.075 249.0);

Tailwind

colors: {
  custom: {
    50: '#5c6f8b',
    500: '#133a5d',
    950: '#000000',
  },
}

SCSS

$custom: #133a5d;
$custom-light: #5c6f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#133a5d",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 93
  },
  "hsl": {
    "h": 208.378,
    "s": 66.071,
    "l": 21.961
  },
  "oklch": {
    "l": 0.34008,
    "c": 0.07545,
    "h": 249
  },
  "luminance": 0.03955
}

Semantic roles & 50–950 ramp

primary

#133A5D

secondary

#956337

accent

#8F3FE9

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #133A5D

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

Preview Lab → · Contrast checker → · Palette generator →