#133DA0#133DA0

#133DA0 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.167 H 263.4°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#133DA0
RGB	rgb(19, 61, 160)
HSL	hsl(222, 79%, 35%)
HSV	hsv(222, 88%, 63%)
CMYK	cmyk(88.1%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(29.45, 25.77, -57.30)
CIE-LCH	lch(29.45, 62.83, 294.21°)
OKLab	oklab(40.13% -0.0193 -0.1659)
OKLCH	oklch(40.13% 0.167 263.4)
XYZ	xyz(8.2802, 6.0129, 33.9751)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133DA0 #A07613

analogous

#1383A0 #133DA0 #3013A0

triadic

#133DA0 #A0133D #3DA013

tetradic

#133DA0 #A01383 #A07613 #13A030

square

#133DA0 #A01383 #A07613 #13A030

split-complementary

#133DA0 #A03013 #83A013

monochromatic

#061333 #0D2869 #133DA0 #1952D7 #4575E9

Accessibility & contrast

On white

9.53

#133DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#133DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133DA0

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133DA0	#FFFFFF	#000000	##FFFFFF
##133DA0	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA3

Deuteranopia (green-blind)

#003F9E

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #133da0;
/* rgb */ color: rgb(19, 61, 160);
/* oklch */ color: oklch(40.1% 0.167 263.4);

Tailwind

colors: {
  custom: {
    50: '#6e72bd',
    500: '#133da0',
    950: '#000000',
  },
}

SCSS

$custom: #133da0;
$custom-light: #6e72bd;
$custom-dark: #000000;

JSON

{
  "hex": "#133da0",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 222.128,
    "s": 78.771,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40125,
    "c": 0.16704,
    "h": 263.4
  },
  "luminance": 0.06014
}

Semantic roles & 50–950 ramp

primary

#133DA0

secondary

#C9A245

accent

#BB33F5

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #133DA0

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

Preview Lab → · Contrast checker → · Palette generator →