#133E8F#133E8F

#133E8F is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.8% C 0.143 H 261.6°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#133E8F
RGB	rgb(19, 62, 143)
HSL	hsl(219, 77%, 32%)
HSV	hsv(219, 87%, 56%)
CMYK	cmyk(86.7%, 56.6%, 0%, 43.9%)
CIE-LAB	lab(28.29, 18.15, -48.80)
CIE-LCH	lch(28.29, 52.07, 290.40°)
OKLab	oklab(38.81% -0.0209 -0.141)
OKLCH	oklch(38.81% 0.143 261.6)
XYZ	xyz(6.9473, 5.5660, 26.6895)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133E8F #8F6413

analogous

#137C8F #133E8F #26138F

triadic

#133E8F #8F133E #3E8F13

tetradic

#133E8F #8F137C #8F6413 #138F26

square

#133E8F #8F137C #8F6413 #138F26

split-complementary

#133E8F #8F2613 #7C8F13

monochromatic

#050F23 #0C2759 #133E8F #1A55C5 #3874E5

Accessibility & contrast

On white

9.94

#133E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#133E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133E8F

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133E8F	#FFFFFF	#000000	##FFFFFF
##133E8F	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004992

Deuteranopia (green-blind)

#003D8D

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #133e8f;
/* rgb */ color: rgb(19, 62, 143);
/* oklch */ color: oklch(38.8% 0.143 261.6);

Tailwind

colors: {
  custom: {
    50: '#6972b0',
    500: '#133e8f',
    950: '#000000',
  },
}

SCSS

$custom: #133e8f;
$custom-light: #6972b0;
$custom-dark: #000000;

JSON

{
  "hex": "#133e8f",
  "rgb": {
    "r": 19,
    "g": 62,
    "b": 143
  },
  "hsl": {
    "h": 219.194,
    "s": 76.543,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3881,
    "c": 0.14251,
    "h": 261.6
  },
  "luminance": 0.05567
}

Semantic roles & 50–950 ramp

primary

#133E8F

secondary

#C3943B

accent

#B135F3

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080711

muted

#7A7A80

Preview Lab

Preview with #133E8F

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

Preview Lab → · Contrast checker → · Palette generator →