#133B5B#133B5B

#133B5B is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.072 H 246.3°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#133B5B
RGB	rgb(19, 59, 91)
HSL	hsl(207, 65%, 22%)
HSV	hsv(207, 79%, 36%)
CMYK	cmyk(79.1%, 35.2%, 0%, 64.3%)
CIE-LAB	lab(23.74, -1.54, -23.12)
CIE-LCH	lch(23.74, 23.17, 266.19°)
OKLab	oklab(34.14% -0.0287 -0.0656)
OKLCH	oklch(34.14% 0.072 246.3)
XYZ	xyz(3.7201, 4.0213, 10.4756)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5B #5B3313

analogous

#135B57 #133B5B #13175B

triadic

#133B5B #5B133B #3B5B13

tetradic

#133B5B #57135B #5B3313 #175B13

square

#133B5B #57135B #5B3313 #175B13

split-complementary

#133B5B #5B1317 #5B5713

monochromatic

#051019 #081A28 #133B5B #1E5C8E #287DC0

Accessibility & contrast

On white

11.64

#133B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#133B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5B

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5B	#FFFFFF	#000000	##FFFFFF
##133B5B	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3C5C

Deuteranopia (green-blind)

#22355A

Tritanopia (blue-blind)

#004346

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #133b5b;
/* rgb */ color: rgb(19, 59, 91);
/* oklch */ color: oklch(34.1% 0.072 246.3);

Tailwind

colors: {
  custom: {
    50: '#5c7089',
    500: '#133b5b',
    950: '#000000',
  },
}

SCSS

$custom: #133b5b;
$custom-light: #5c7089;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5b",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 91
  },
  "hsl": {
    "h": 206.667,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.34144,
    "c": 0.07161,
    "h": 246.3
  },
  "luminance": 0.04022
}

Semantic roles & 50–950 ramp

primary

#133B5B

secondary

#936037

accent

#8B3FE8

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133B5B

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

Preview Lab → · Contrast checker → · Palette generator →