#133F80#133F80

#133F80 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 37.8% C 0.120 H 258.7°. Best body text is #FFFFFF at 10.24:1 contrast (WCAG AA passes).

Color values

HEX	#133F80
RGB	rgb(19, 63, 128)
HSL	hsl(216, 74%, 29%)
HSV	hsv(216, 85%, 50%)
CMYK	cmyk(85.2%, 50.8%, 0%, 49.8%)
CIE-LAB	lab(27.44, 11.19, -40.88)
CIE-LCH	lch(27.44, 42.38, 285.32°)
OKLab	oklab(37.8% -0.0235 -0.1176)
OKLCH	oklch(37.8% 0.12 258.7)
XYZ	xyz(5.9409, 5.2512, 21.1184)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F80 #805413

analogous

#137680 #133F80 #1E1380

triadic

#133F80 #80133F #3F8013

tetradic

#133F80 #801376 #805413 #13801E

square

#133F80 #801376 #805413 #13801E

split-complementary

#133F80 #801E13 #768013

monochromatic

#040D1B #0B254B #133F80 #1B59B5 #2D76E0

Accessibility & contrast

On white

10.24

#133F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#133F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F80

10.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F80	#FFFFFF	#000000	##FFFFFF
##133F80	1.00	10.24	2.05	10.24
#FFFFFF	10.24	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184682

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#004F59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #133f80;
/* rgb */ color: rgb(19, 63, 128);
/* oklch */ color: oklch(37.8% 0.120 258.7);

Tailwind

colors: {
  custom: {
    50: '#6573a5',
    500: '#133f80',
    950: '#000000',
  },
}

SCSS

$custom: #133f80;
$custom-light: #6573a5;
$custom-dark: #000000;

JSON

{
  "hex": "#133f80",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 128
  },
  "hsl": {
    "h": 215.78,
    "s": 74.15,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37798,
    "c": 0.11996,
    "h": 258.7
  },
  "luminance": 0.05252
}

Semantic roles & 50–950 ramp

primary

#133F80

secondary

#B58339

accent

#A637F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #133F80

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

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