#133A57#133A57

#133A57 is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.067 H 244.4°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#133A57
RGB	rgb(19, 58, 87)
HSL	hsl(206, 64%, 21%)
HSV	hsv(206, 78%, 34%)
CMYK	cmyk(78.2%, 33.3%, 0%, 65.9%)
CIE-LAB	lab(23.18, -2.50, -21.39)
CIE-LCH	lch(23.18, 21.53, 263.33°)
OKLab	oklab(33.63% -0.029 -0.0605)
OKLCH	oklch(33.63% 0.067 244.4)
XYZ	xyz(3.5013, 3.8523, 9.5740)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A57 #573013

analogous

#135752 #133A57 #131857

triadic

#133A57 #57133A #3A5713

tetradic

#133A57 #521357 #573013 #185713

square

#133A57 #521357 #573013 #185713

split-complementary

#133A57 #571318 #575213

monochromatic

#051119 #081925 #133A57 #1E5B89 #297DBB

Accessibility & contrast

On white

11.86

#133A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#133A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A57

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A57	#FFFFFF	#000000	##FFFFFF
##133A57	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3B58

Deuteranopia (green-blind)

#233456

Tritanopia (blue-blind)

#004144

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133a57;
/* rgb */ color: rgb(19, 58, 87);
/* oklch */ color: oklch(33.6% 0.067 244.4);

Tailwind

colors: {
  custom: {
    50: '#5b6f86',
    500: '#133a57',
    950: '#000000',
  },
}

SCSS

$custom: #133a57;
$custom-light: #5b6f86;
$custom-dark: #000000;

JSON

{
  "hex": "#133a57",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 87
  },
  "hsl": {
    "h": 205.588,
    "s": 64.151,
    "l": 20.784
  },
  "oklch": {
    "l": 0.33625,
    "c": 0.06714,
    "h": 244.4
  },
  "luminance": 0.03853
}

Semantic roles & 50–950 ramp

primary

#133A57

secondary

#8F5C36

accent

#8841E7

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #133A57

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

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