#133E5B#133E5B

#133E5B is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.069 H 242.3°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#133E5B
RGB	rgb(19, 62, 91)
HSL	hsl(204, 65%, 22%)
HSV	hsv(204, 79%, 36%)
CMYK	cmyk(79.1%, 31.9%, 0%, 64.3%)
CIE-LAB	lab(24.76, -3.55, -21.52)
CIE-LCH	lch(24.76, 21.81, 260.63°)
OKLab	oklab(34.95% -0.032 -0.0609)
OKLCH	oklch(34.95% 0.069 242.3)
XYZ	xyz(3.8788, 4.3386, 10.5285)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133E5B #5B3013

analogous

#135B54 #133E5B #131A5B

triadic

#133E5B #5B133E #3E5B13

tetradic

#133E5B #54135B #5B3013 #1A5B13

square

#133E5B #54135B #5B3013 #1A5B13

split-complementary

#133E5B #5B131A #5B5413

monochromatic

#051119 #081C28 #133E5B #1E608E #2883C0

Accessibility & contrast

On white

11.24

#133E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#133E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133E5B

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133E5B	#FFFFFF	#000000	##FFFFFF
##133E5B	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313F5C

Deuteranopia (green-blind)

#27385A

Tritanopia (blue-blind)

#004548

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #133e5b;
/* rgb */ color: rgb(19, 62, 91);
/* oklch */ color: oklch(34.9% 0.069 242.3);

Tailwind

colors: {
  custom: {
    50: '#5c7389',
    500: '#133e5b',
    950: '#000000',
  },
}

SCSS

$custom: #133e5b;
$custom-light: #5c7389;
$custom-dark: #000000;

JSON

{
  "hex": "#133e5b",
  "rgb": {
    "r": 19,
    "g": 62,
    "b": 91
  },
  "hsl": {
    "h": 204.167,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34949,
    "c": 0.06879,
    "h": 242.3
  },
  "luminance": 0.04339
}

Semantic roles & 50–950 ramp

primary

#133E5B

secondary

#935C37

accent

#833FE8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #133E5B

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

Preview Lab → · Contrast checker → · Palette generator →