#133B5F#133B5F

#133B5F is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.077 H 249.2°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#133B5F
RGB	rgb(19, 59, 95)
HSL	hsl(208, 67%, 22%)
HSV	hsv(208, 80%, 37%)
CMYK	cmyk(80%, 37.9%, 0%, 62.7%)
CIE-LAB	lab(23.97, 0.11, -25.37)
CIE-LCH	lch(23.97, 25.37, 270.26°)
OKLab	oklab(34.4% -0.0275 -0.0722)
OKLCH	oklch(34.4% 0.077 249.2)
XYZ	xyz(3.8973, 4.0922, 11.4087)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5F #5F3713

analogous

#135F5D #133B5F #13155F

triadic

#133B5F #5F133B #3B5F13

tetradic

#133B5F #5D135F #5F3713 #155F13

square

#133B5F #5D135F #5F3713 #155F13

split-complementary

#133B5F #5F1315 #5F5D13

monochromatic

#05101A #091B2C #133B5F #1D5B92 #277AC5

Accessibility & contrast

On white

11.55

#133B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#133B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5F

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5F	#FFFFFF	#000000	##FFFFFF
##133B5F	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3D61

Deuteranopia (green-blind)

#1F365E

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133b5f;
/* rgb */ color: rgb(19, 59, 95);
/* oklch */ color: oklch(34.4% 0.077 249.2);

Tailwind

colors: {
  custom: {
    50: '#5d708c',
    500: '#133b5f',
    950: '#000000',
  },
}

SCSS

$custom: #133b5f;
$custom-light: #5d708c;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5f",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 95
  },
  "hsl": {
    "h": 208.421,
    "s": 66.667,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34403,
    "c": 0.0772,
    "h": 249.2
  },
  "luminance": 0.04093
}

Semantic roles & 50–950 ramp

primary

#133B5F

secondary

#976437

accent

#8F3EEA

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #133B5F

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

Preview Lab → · Contrast checker → · Palette generator →