#133F66#133F66

#133F66 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.9% C 0.083 H 249.1°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#133F66
RGB	rgb(19, 63, 102)
HSL	hsl(208, 69%, 24%)
HSV	hsv(208, 81%, 40%)
CMYK	cmyk(81.4%, 38.2%, 0%, 60%)
CIE-LAB	lab(25.72, 0.29, -27.13)
CIE-LCH	lch(25.72, 27.13, 270.62°)
OKLab	oklab(35.91% -0.0295 -0.0772)
OKLCH	oklch(35.91% 0.083 249.1)
XYZ	xyz(4.4434, 4.6522, 13.2316)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F66 #663A13

analogous

#136663 #133F66 #131566

triadic

#133F66 #66133F #3F6613

tetradic

#133F66 #631366 #663A13 #156613

square

#133F66 #631366 #663A13 #156613

split-complementary

#133F66 #661315 #666313

monochromatic

#05101A #091F32 #133F66 #1D5F9A #267FCD

Accessibility & contrast

On white

10.88

#133F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#133F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F66

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F66	#FFFFFF	#000000	##FFFFFF
##133F66	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4168

Deuteranopia (green-blind)

#213965

Tritanopia (blue-blind)

#00484D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133f66;
/* rgb */ color: rgb(19, 63, 102);
/* oklch */ color: oklch(35.9% 0.083 249.1);

Tailwind

colors: {
  custom: {
    50: '#5f7392',
    500: '#133f66',
    950: '#000000',
  },
}

SCSS

$custom: #133f66;
$custom-light: #5f7392;
$custom-dark: #000000;

JSON

{
  "hex": "#133f66",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 102
  },
  "hsl": {
    "h": 208.193,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35909,
    "c": 0.08267,
    "h": 249.1
  },
  "luminance": 0.04653
}

Semantic roles & 50–950 ramp

primary

#133F66

secondary

#9D6737

accent

#8F3CEB

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05080D

muted

#797B7E

Preview Lab

Preview with #133F66

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

Preview Lab → · Contrast checker → · Palette generator →