#133B4D#133B4D

#133B4D is a dark, muted cyan. Relative luminance 0.038; OKLCH L 33.3% C 0.054 H 231.1°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#133B4D
RGB	rgb(19, 59, 77)
HSL	hsl(199, 60%, 19%)
HSV	hsv(199, 75%, 30%)
CMYK	cmyk(75.3%, 23.4%, 0%, 69.8%)
CIE-LAB	lab(23.01, -7.16, -15.05)
CIE-LCH	lch(23.01, 16.66, 244.56°)
OKLab	oklab(33.32% -0.034 -0.0422)
OKLCH	oklch(33.32% 0.054 231.1)
XYZ	xyz(3.1715, 3.8019, 7.5864)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B4D #4D2513

analogous

#134D42 #133B4D #131E4D

triadic

#133B4D #4D133B #3B4D13

tetradic

#133B4D #42134D #4D2513 #1E4D13

square

#133B4D #42134D #4D2513 #1E4D13

split-complementary

#133B4D #4D131E #4D4213

monochromatic

#061319 #07151C #133B4D #1F617E #2B86AF

Accessibility & contrast

On white

11.93

#133B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#133B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B4D

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B4D	#FFFFFF	#000000	##FFFFFF
##133B4D	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4E

Deuteranopia (green-blind)

#2A344D

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #133b4d;
/* rgb */ color: rgb(19, 59, 77);
/* oklch */ color: oklch(33.3% 0.054 231.1);

Tailwind

colors: {
  custom: {
    50: '#59707f',
    500: '#133b4d',
    950: '#000000',
  },
}

SCSS

$custom: #133b4d;
$custom-light: #59707f;
$custom-dark: #000000;

JSON

{
  "hex": "#133b4d",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 77
  },
  "hsl": {
    "h": 198.621,
    "s": 60.417,
    "l": 18.824
  },
  "oklch": {
    "l": 0.33318,
    "c": 0.05422,
    "h": 231.1
  },
  "luminance": 0.03802
}

Semantic roles & 50–950 ramp

primary

#133B4D

secondary

#864F36

accent

#7644E4

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #133B4D

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

Preview Lab → · Contrast checker → · Palette generator →