#133A71#133A71

#133A71 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.4% C 0.105 H 257.9°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#133A71
RGB	rgb(19, 58, 113)
HSL	hsl(215, 71%, 26%)
HSV	hsv(215, 83%, 44%)
CMYK	cmyk(83.2%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(24.82, 8.39, -35.63)
CIE-LCH	lch(24.82, 36.60, 283.25°)
OKLab	oklab(35.44% -0.022 -0.1023)
OKLCH	oklch(35.44% 0.105 257.9)
XYZ	xyz(4.7612, 4.3562, 16.2095)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A71 #714A13

analogous

#136971 #133A71 #1B1371

triadic

#133A71 #71133A #3A7113

tetradic

#133A71 #711369 #714A13 #13711B

square

#133A71 #711369 #714A13 #13711B

split-complementary

#133A71 #711B13 #697113

monochromatic

#040D1A #0A1F3D #133A71 #1C55A5 #2570DA

Accessibility & contrast

On white

11.22

#133A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#133A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A71

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A71	#FFFFFF	#000000	##FFFFFF
##133A71	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C3F73

Deuteranopia (green-blind)

#043770

Tritanopia (blue-blind)

#004750

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #133a71;
/* rgb */ color: rgb(19, 58, 113);
/* oklch */ color: oklch(35.4% 0.105 257.9);

Tailwind

colors: {
  custom: {
    50: '#616f9a',
    500: '#133a71',
    950: '#000000',
  },
}

SCSS

$custom: #133a71;
$custom-light: #616f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#133a71",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 215.106,
    "s": 71.212,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35436,
    "c": 0.10463,
    "h": 257.9
  },
  "luminance": 0.04357
}

Semantic roles & 50–950 ramp

primary

#133A71

secondary

#A87938

accent

#A33AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133A71

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

Preview Lab → · Contrast checker → · Palette generator →