#133C8E#133C8E

#133C8E is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.144 H 262.1°. Best body text is #FFFFFF at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#133C8E
RGB	rgb(19, 60, 142)
HSL	hsl(220, 76%, 32%)
HSV	hsv(220, 87%, 56%)
CMYK	cmyk(86.6%, 57.7%, 0%, 44.3%)
CIE-LAB	lab(27.63, 19.13, -49.26)
CIE-LCH	lch(27.63, 52.84, 291.23°)
OKLab	oklab(38.29% -0.0197 -0.1423)
OKLCH	oklch(38.29% 0.144 262.1)
XYZ	xyz(6.7651, 5.3223, 26.2567)
Luminance	0.0532 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133C8E #8E6513

analogous

#137A8E #133C8E #28138E

triadic

#133C8E #8E133C #3C8E13

tetradic

#133C8E #8E137A #8E6513 #138E28

square

#133C8E #8E137A #8E6513 #138E28

split-complementary

#133C8E #8E2813 #7A8E13

monochromatic

#050E22 #0C2558 #133C8E #1A53C4 #3771E4

Accessibility & contrast

On white

10.17

#133C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#133C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133C8E

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133C8E	#FFFFFF	#000000	##FFFFFF
##133C8E	1.00	10.17	2.06	10.17
#FFFFFF	10.17	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#003C8C

Tritanopia (blue-blind)

#00515F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #133c8e;
/* rgb */ color: rgb(19, 60, 142);
/* oklch */ color: oklch(38.3% 0.144 262.1);

Tailwind

colors: {
  custom: {
    50: '#6971b0',
    500: '#133c8e',
    950: '#000000',
  },
}

SCSS

$custom: #133c8e;
$custom-light: #6971b0;
$custom-dark: #000000;

JSON

{
  "hex": "#133c8e",
  "rgb": {
    "r": 19,
    "g": 60,
    "b": 142
  },
  "hsl": {
    "h": 220,
    "s": 76.398,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38289,
    "c": 0.1437,
    "h": 262.1
  },
  "luminance": 0.05323
}

Semantic roles & 50–950 ramp

primary

#133C8E

secondary

#C2953B

accent

#B435F3

background

#F6F6FA

surface

#ECECF5

border

#C7C7CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #133C8E

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

Preview Lab → · Contrast checker → · Palette generator →