#133E8C#133E8C

#133E8C is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.6% C 0.138 H 261.2°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#133E8C
RGB	rgb(19, 62, 140)
HSL	hsl(219, 76%, 31%)
HSV	hsv(219, 86%, 55%)
CMYK	cmyk(86.4%, 55.7%, 0%, 45.1%)
CIE-LAB	lab(28.05, 16.91, -47.34)
CIE-LCH	lch(28.05, 50.27, 289.65°)
OKLab	oklab(38.55% -0.0212 -0.1367)
OKLCH	oklch(38.55% 0.138 261.2)
XYZ	xyz(6.7231, 5.4763, 25.5085)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133E8C #8C6113

analogous

#137A8C #133E8C #24138C

triadic

#133E8C #8C133E #3E8C13

tetradic

#133E8C #8C137A #8C6113 #138C24

square

#133E8C #8C137A #8C6113 #138C24

split-complementary

#133E8C #8C2413 #7A8C13

monochromatic

#040E20 #0C2656 #133E8C #1A56C2 #3674E4

Accessibility & contrast

On white

10.02

#133E8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#133E8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133E8C

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133E8C	#FFFFFF	#000000	##FFFFFF
##133E8C	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488F

Deuteranopia (green-blind)

#003D8A

Tritanopia (blue-blind)

#00515E

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #133e8c;
/* rgb */ color: rgb(19, 62, 140);
/* oklch */ color: oklch(38.6% 0.138 261.2);

Tailwind

colors: {
  custom: {
    50: '#6972ae',
    500: '#133e8c',
    950: '#000000',
  },
}

SCSS

$custom: #133e8c;
$custom-light: #6972ae;
$custom-dark: #000000;

JSON

{
  "hex": "#133e8c",
  "rgb": {
    "r": 19,
    "g": 62,
    "b": 140
  },
  "hsl": {
    "h": 218.678,
    "s": 76.101,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38554,
    "c": 0.13831,
    "h": 261.2
  },
  "luminance": 0.05477
}

Semantic roles & 50–950 ramp

primary

#133E8C

secondary

#C0913B

accent

#AF35F3

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #133E8C

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

Preview Lab → · Contrast checker → · Palette generator →