#133F7F#133F7F

#133F7F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.119 H 258.5°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#133F7F
RGB	rgb(19, 63, 127)
HSL	hsl(216, 74%, 29%)
HSV	hsv(216, 85%, 50%)
CMYK	cmyk(85%, 50.4%, 0%, 50.2%)
CIE-LAB	lab(27.37, 10.77, -40.37)
CIE-LCH	lch(27.37, 41.78, 284.94°)
OKLab	oklab(37.72% -0.0237 -0.1161)
OKLCH	oklch(37.72% 0.119 258.5)
XYZ	xyz(5.8754, 5.2250, 20.7734)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F7F #7F5313

analogous

#13757F #133F7F #1D137F

triadic

#133F7F #7F133F #3F7F13

tetradic

#133F7F #7F1375 #7F5313 #137F1D

square

#133F7F #7F1375 #7F5313 #137F1D

split-complementary

#133F7F #7F1D13 #757F13

monochromatic

#040D1B #0B254A #133F7F #1B59B4 #2D76E0

Accessibility & contrast

On white

10.27

#133F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#133F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F7F

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F7F	#FFFFFF	#000000	##FFFFFF
##133F7F	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194681

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #133f7f;
/* rgb */ color: rgb(19, 63, 127);
/* oklch */ color: oklch(37.7% 0.119 258.5);

Tailwind

colors: {
  custom: {
    50: '#6573a5',
    500: '#133f7f',
    950: '#000000',
  },
}

SCSS

$custom: #133f7f;
$custom-light: #6573a5;
$custom-dark: #000000;

JSON

{
  "hex": "#133f7f",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 127
  },
  "hsl": {
    "h": 215.556,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37719,
    "c": 0.11852,
    "h": 258.5
  },
  "luminance": 0.05226
}

Semantic roles & 50–950 ramp

primary

#133F7F

secondary

#B48239

accent

#A537F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #133F7F

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

Preview Lab → · Contrast checker → · Palette generator →