#133F5E#133F5E

#133F5E is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.4% C 0.072 H 243.5°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#133F5E
RGB	rgb(19, 63, 94)
HSL	hsl(205, 66%, 22%)
HSV	hsv(205, 80%, 37%)
CMYK	cmyk(79.8%, 33%, 0%, 63.1%)
CIE-LAB	lab(25.26, -2.99, -22.68)
CIE-LCH	lch(25.26, 22.88, 262.48°)
OKLab	oklab(35.4% -0.0321 -0.0642)
OKLCH	oklch(35.4% 0.072 243.5)
XYZ	xyz(4.0657, 4.5011, 11.2420)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F5E #5E3213

analogous

#135E58 #133F5E #131A5E

triadic

#133F5E #5E133F #3F5E13

tetradic

#133F5E #58135E #5E3213 #1A5E13

square

#133F5E #58135E #5E3213 #1A5E13

split-complementary

#133F5E #5E131A #5E5813

monochromatic

#051119 #091D2B #133F5E #1D6191 #2883C4

Accessibility & contrast

On white

11.05

#133F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#133F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F5E

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F5E	#FFFFFF	#000000	##FFFFFF
##133F5E	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31405F

Deuteranopia (green-blind)

#26395D

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133f5e;
/* rgb */ color: rgb(19, 63, 94);
/* oklch */ color: oklch(35.4% 0.072 243.5);

Tailwind

colors: {
  custom: {
    50: '#5d738c',
    500: '#133f5e',
    950: '#000000',
  },
}

SCSS

$custom: #133f5e;
$custom-light: #5d738c;
$custom-dark: #000000;

JSON

{
  "hex": "#133f5e",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 94
  },
  "hsl": {
    "h": 204.8,
    "s": 66.372,
    "l": 22.157
  },
  "oklch": {
    "l": 0.354,
    "c": 0.07181,
    "h": 243.5
  },
  "luminance": 0.04502
}

Semantic roles & 50–950 ramp

primary

#133F5E

secondary

#965E37

accent

#853FE9

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #133F5E

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

Preview Lab → · Contrast checker → · Palette generator →