#133B5C#133B5C

#133B5C is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.073 H 247.1°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#133B5C
RGB	rgb(19, 59, 92)
HSL	hsl(207, 66%, 22%)
HSV	hsv(207, 79%, 36%)
CMYK	cmyk(79.3%, 35.9%, 0%, 63.9%)
CIE-LAB	lab(23.80, -1.13, -23.69)
CIE-LCH	lch(23.80, 23.71, 267.28°)
OKLab	oklab(34.21% -0.0284 -0.0672)
OKLCH	oklch(34.21% 0.073 247.1)
XYZ	xyz(3.7636, 4.0387, 10.7043)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5C #5C3413

analogous

#135C59 #133B5C #13175C

triadic

#133B5C #5C133B #3B5C13

tetradic

#133B5C #59135C #5C3413 #175C13

square

#133B5C #59135C #5C3413 #175C13

split-complementary

#133B5C #5C1317 #5C5913

monochromatic

#051019 #091A29 #133B5C #1D5C8F #287CC1

Accessibility & contrast

On white

11.62

#133B5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133B5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5C

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5C	#FFFFFF	#000000	##FFFFFF
##133B5C	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3C5D

Deuteranopia (green-blind)

#22365B

Tritanopia (blue-blind)

#004347

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133b5c;
/* rgb */ color: rgb(19, 59, 92);
/* oklch */ color: oklch(34.2% 0.073 247.1);

Tailwind

colors: {
  custom: {
    50: '#5c708a',
    500: '#133b5c',
    950: '#000000',
  },
}

SCSS

$custom: #133b5c;
$custom-light: #5c708a;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5c",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 92
  },
  "hsl": {
    "h": 207.123,
    "s": 65.766,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34208,
    "c": 0.073,
    "h": 247.1
  },
  "luminance": 0.04039
}

Semantic roles & 50–950 ramp

primary

#133B5C

secondary

#946137

accent

#8C3FE9

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #133B5C

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

Preview Lab → · Contrast checker → · Palette generator →