#133F57#133F57

#133F57 is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.0% C 0.063 H 236.7°. Best body text is #FFFFFF at 11.19:1 contrast (WCAG AA passes).

Color values

HEX	#133F57
RGB	rgb(19, 63, 87)
HSL	hsl(201, 64%, 21%)
HSV	hsv(201, 78%, 34%)
CMYK	cmyk(78.2%, 27.6%, 0%, 65.9%)
CIE-LAB	lab(24.89, -5.81, -18.70)
CIE-LCH	lch(24.89, 19.58, 252.74°)
OKLab	oklab(34.99% -0.0347 -0.0527)
OKLCH	oklch(34.99% 0.063 236.7)
XYZ	xyz(3.7657, 4.3812, 9.6622)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F57 #572B13

analogous

#13574D #133F57 #131D57

triadic

#133F57 #57133F #3F5713

tetradic

#133F57 #4D1357 #572B13 #1D5713

square

#133F57 #4D1357 #572B13 #1D5713

split-complementary

#133F57 #57131D #574D13

monochromatic

#051219 #081B25 #133F57 #1E6389 #2988BB

Accessibility & contrast

On white

11.19

#133F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#133F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F57

11.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F57	#FFFFFF	#000000	##FFFFFF
##133F57	1.00	11.19	1.88	11.19
#FFFFFF	11.19	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343F58

Deuteranopia (green-blind)

#2A3857

Tritanopia (blue-blind)

#004547

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #133f57;
/* rgb */ color: rgb(19, 63, 87);
/* oklch */ color: oklch(35.0% 0.063 236.7);

Tailwind

colors: {
  custom: {
    50: '#5b7486',
    500: '#133f57',
    950: '#000000',
  },
}

SCSS

$custom: #133f57;
$custom-light: #5b7486;
$custom-dark: #000000;

JSON

{
  "hex": "#133f57",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 87
  },
  "hsl": {
    "h": 201.176,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34985,
    "c": 0.06307,
    "h": 236.7
  },
  "luminance": 0.04382
}

Semantic roles & 50–950 ramp

primary

#133F57

secondary

#8F5636

accent

#7B41E7

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #133F57

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

Preview Lab → · Contrast checker → · Palette generator →