#133A7C#133A7C

#133A7C is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.121 H 260.4°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#133A7C
RGB	rgb(19, 58, 124)
HSL	hsl(218, 73%, 28%)
HSV	hsv(218, 85%, 49%)
CMYK	cmyk(84.7%, 53.2%, 0%, 51.4%)
CIE-LAB	lab(25.62, 13.03, -41.30)
CIE-LCH	lch(25.62, 43.31, 287.51°)
OKLab	oklab(36.31% -0.0202 -0.119)
OKLCH	oklch(36.31% 0.121 260.4)
XYZ	xyz(5.4184, 4.6191, 19.6709)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A7C #7C5513

analogous

#136E7C #133A7C #20137C

triadic

#133A7C #7C133A #3A7C13

tetradic

#133A7C #7C136E #7C5513 #137C20

square

#133A7C #7C136E #7C5513 #137C20

split-complementary

#133A7C #7C2013 #6E7C13

monochromatic

#040C1B #0B2147 #133A7C #1B53B1 #2B6EDF

Accessibility & contrast

On white

10.91

#133A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#133A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A7C

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A7C	#FFFFFF	#000000	##FFFFFF
##133A7C	1.00	10.91	1.92	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E427E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #133a7c;
/* rgb */ color: rgb(19, 58, 124);
/* oklch */ color: oklch(36.3% 0.121 260.4);

Tailwind

colors: {
  custom: {
    50: '#646fa2',
    500: '#133a7c',
    950: '#000000',
  },
}

SCSS

$custom: #133a7c;
$custom-light: #646fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#133a7c",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 124
  },
  "hsl": {
    "h": 217.714,
    "s": 73.427,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36311,
    "c": 0.12069,
    "h": 260.4
  },
  "luminance": 0.0462
}

Semantic roles & 50–950 ramp

primary

#133A7C

secondary

#B28539

accent

#AC38F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #133A7C

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

Preview Lab → · Contrast checker → · Palette generator →