#133A7F#133A7F

#133A7F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.125 H 260.9°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#133A7F
RGB	rgb(19, 58, 127)
HSL	hsl(218, 74%, 29%)
HSV	hsv(218, 85%, 50%)
CMYK	cmyk(85%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(25.85, 14.29, -42.82)
CIE-LCH	lch(25.85, 45.14, 288.46°)
OKLab	oklab(36.56% -0.0198 -0.1234)
OKLCH	oklch(36.56% 0.125 260.9)
XYZ	xyz(5.6110, 4.6962, 20.6853)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A7F #7F5813

analogous

#13707F #133A7F #22137F

triadic

#133A7F #7F133A #3A7F13

tetradic

#133A7F #7F1370 #7F5813 #137F22

square

#133A7F #7F1370 #7F5813 #137F22

split-complementary

#133A7F #7F2213 #707F13

monochromatic

#040C1B #0B224A #133A7F #1B52B4 #2D6DE0

Accessibility & contrast

On white

10.83

#133A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#133A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A7F

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A7F	#FFFFFF	#000000	##FFFFFF
##133A7F	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074281

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133a7f;
/* rgb */ color: rgb(19, 58, 127);
/* oklch */ color: oklch(36.6% 0.125 260.9);

Tailwind

colors: {
  custom: {
    50: '#656fa5',
    500: '#133a7f',
    950: '#000000',
  },
}

SCSS

$custom: #133a7f;
$custom-light: #656fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#133a7f",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 218.333,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36559,
    "c": 0.12503,
    "h": 260.9
  },
  "luminance": 0.04697
}

Semantic roles & 50–950 ramp

primary

#133A7F

secondary

#B48839

accent

#AE37F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133A7F

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

Preview Lab → · Contrast checker → · Palette generator →