#133D4E#133D4E

#133D4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.054 H 228.5°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#133D4E
RGB	rgb(19, 61, 78)
HSL	hsl(197, 61%, 19%)
HSV	hsv(197, 76%, 31%)
CMYK	cmyk(75.6%, 21.8%, 0%, 69.4%)
CIE-LAB	lab(23.76, -8.05, -14.55)
CIE-LCH	lch(23.76, 16.63, 241.04°)
OKLab	oklab(33.93% -0.036 -0.0407)
OKLCH	oklch(33.93% 0.054 228.5)
XYZ	xyz(3.3119, 4.0256, 7.8087)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D4E #4E2413

analogous

#134E42 #133D4E #13204E

triadic

#133D4E #4E133D #3D4E13

tetradic

#133D4E #42134E #4E2413 #204E13

square

#133D4E #42134E #4E2413 #204E13

split-complementary

#133D4E #4E1320 #4E4213

monochromatic

#061319 #07171D #133D4E #1F637F #2B8AB0

Accessibility & contrast

On white

11.63

#133D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#133D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D4E

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D4E	#FFFFFF	#000000	##FFFFFF
##133D4E	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4F

Deuteranopia (green-blind)

#2C364E

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133d4e;
/* rgb */ color: rgb(19, 61, 78);
/* oklch */ color: oklch(33.9% 0.054 228.5);

Tailwind

colors: {
  custom: {
    50: '#5a727f',
    500: '#133d4e',
    950: '#000000',
  },
}

SCSS

$custom: #133d4e;
$custom-light: #5a727f;
$custom-dark: #000000;

JSON

{
  "hex": "#133d4e",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 78
  },
  "hsl": {
    "h": 197.288,
    "s": 60.825,
    "l": 19.02
  },
  "oklch": {
    "l": 0.33933,
    "c": 0.05439,
    "h": 228.5
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#133D4E

secondary

#874D36

accent

#7244E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #133D4E

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

Preview Lab → · Contrast checker → · Palette generator →