#133F51#133F51

#133F51 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.7% C 0.057 H 229.0°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#133F51
RGB	rgb(19, 63, 81)
HSL	hsl(197, 62%, 20%)
HSV	hsv(197, 77%, 32%)
CMYK	cmyk(76.5%, 22.2%, 0%, 68.2%)
CIE-LAB	lab(24.60, -8.16, -15.23)
CIE-LCH	lch(24.60, 17.28, 241.80°)
OKLab	oklab(34.65% -0.0371 -0.0427)
OKLCH	oklch(34.65% 0.057 229)
XYZ	xyz(3.5307, 4.2871, 8.4244)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F51 #512513

analogous

#135144 #133F51 #132051

triadic

#133F51 #51133F #3F5113

tetradic

#133F51 #441351 #512513 #205113

square

#133F51 #441351 #512513 #205113

split-complementary

#133F51 #511320 #514413

monochromatic

#061319 #07181F #133F51 #1F6683 #2A8CB4

Accessibility & contrast

On white

11.30

#133F51 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#133F51 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F51

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F51	#FFFFFF	#000000	##FFFFFF
##133F51	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#363E52

Deuteranopia (green-blind)

#2D3851

Tritanopia (blue-blind)

#004445

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #133f51;
/* rgb */ color: rgb(19, 63, 81);
/* oklch */ color: oklch(34.7% 0.057 229.0);

Tailwind

colors: {
  custom: {
    50: '#5a7482',
    500: '#133f51',
    950: '#000000',
  },
}

SCSS

$custom: #133f51;
$custom-light: #5a7482;
$custom-dark: #000000;

JSON

{
  "hex": "#133f51",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 81
  },
  "hsl": {
    "h": 197.419,
    "s": 62,
    "l": 19.608
  },
  "oklch": {
    "l": 0.34653,
    "c": 0.05656,
    "h": 229
  },
  "luminance": 0.04288
}

Semantic roles & 50–950 ramp

primary

#133F51

secondary

#8A4E36

accent

#7243E5

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133F51

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

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