#133B76#133B76

#133B76 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.111 H 258.6°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#133B76
RGB	rgb(19, 59, 118)
HSL	hsl(216, 72%, 27%)
HSV	hsv(216, 84%, 46%)
CMYK	cmyk(83.9%, 50%, 0%, 53.7%)
CIE-LAB	lab(25.48, 9.79, -37.73)
CIE-LCH	lch(25.48, 38.98, 284.55°)
OKLab	oklab(36.06% -0.0219 -0.1085)
OKLCH	oklch(36.06% 0.111 258.6)
XYZ	xyz(5.1013, 4.5738, 17.7500)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B76 #764E13

analogous

#136D76 #133B76 #1D1376

triadic

#133B76 #76133B #3B7613

tetradic

#133B76 #76136D #764E13 #13761D

square

#133B76 #76136D #764E13 #13761D

split-complementary

#133B76 #761D13 #6D7613

monochromatic

#040D1A #0B2141 #133B76 #1B55AB #2770DC

Accessibility & contrast

On white

10.97

#133B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#133B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B76

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B76	#FFFFFF	#000000	##FFFFFF
##133B76	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194178

Deuteranopia (green-blind)

#003875

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133b76;
/* rgb */ color: rgb(19, 59, 118);
/* oklch */ color: oklch(36.1% 0.111 258.6);

Tailwind

colors: {
  custom: {
    50: '#63709e',
    500: '#133b76',
    950: '#000000',
  },
}

SCSS

$custom: #133b76;
$custom-light: #63709e;
$custom-dark: #000000;

JSON

{
  "hex": "#133b76",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 118
  },
  "hsl": {
    "h": 215.758,
    "s": 72.263,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36064,
    "c": 0.11066,
    "h": 258.6
  },
  "luminance": 0.04574
}

Semantic roles & 50–950 ramp

primary

#133B76

secondary

#AC7E39

accent

#A539EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133B76

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

Preview Lab → · Contrast checker → · Palette generator →