#133B5E#133B5E

#133B5E is a dark, moderate cyan. Relative luminance 0.041; OKLCH L 34.3% C 0.076 H 248.5°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#133B5E
RGB	rgb(19, 59, 94)
HSL	hsl(208, 66%, 22%)
HSV	hsv(208, 80%, 37%)
CMYK	cmyk(79.8%, 37.2%, 0%, 63.1%)
CIE-LAB	lab(23.91, -0.30, -24.81)
CIE-LCH	lch(23.91, 24.81, 269.31°)
OKLab	oklab(34.34% -0.0278 -0.0705)
OKLCH	oklch(34.34% 0.076 248.5)
XYZ	xyz(3.8521, 4.0741, 11.1709)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B5E #5E3613

analogous

#135E5C #133B5E #13155E

triadic

#133B5E #5E133B #3B5E13

tetradic

#133B5E #5C135E #5E3613 #155E13

square

#133B5E #5C135E #5E3613 #155E13

split-complementary

#133B5E #5E1315 #5E5C13

monochromatic

#051019 #091B2B #133B5E #1D5B91 #287BC4

Accessibility & contrast

On white

11.57

#133B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#133B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B5E

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B5E	#FFFFFF	#000000	##FFFFFF
##133B5E	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3D5F

Deuteranopia (green-blind)

#20365D

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #133b5e;
/* rgb */ color: rgb(19, 59, 94);
/* oklch */ color: oklch(34.3% 0.076 248.5);

Tailwind

colors: {
  custom: {
    50: '#5d708c',
    500: '#133b5e',
    950: '#000000',
  },
}

SCSS

$custom: #133b5e;
$custom-light: #5d708c;
$custom-dark: #000000;

JSON

{
  "hex": "#133b5e",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 94
  },
  "hsl": {
    "h": 208,
    "s": 66.372,
    "l": 22.157
  },
  "oklch": {
    "l": 0.34337,
    "c": 0.07579,
    "h": 248.5
  },
  "luminance": 0.04075
}

Semantic roles & 50–950 ramp

primary

#133B5E

secondary

#966337

accent

#8E3FE9

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #133B5E

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

Preview Lab → · Contrast checker → · Palette generator →