#133A75#133A75

#133A75 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.111 H 258.9°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#133A75
RGB	rgb(19, 58, 117)
HSL	hsl(216, 72%, 27%)
HSV	hsv(216, 84%, 46%)
CMYK	cmyk(83.8%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.10, 10.08, -37.71)
CIE-LCH	lch(25.10, 39.04, 284.96°)
OKLab	oklab(35.75% -0.0213 -0.1084)
OKLCH	oklch(35.75% 0.111 258.9)
XYZ	xyz(4.9913, 4.4483, 17.4217)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A75 #754E13

analogous

#136B75 #133A75 #1D1375

triadic

#133A75 #75133A #3A7513

tetradic

#133A75 #75136B #754E13 #13751D

square

#133A75 #75136B #754E13 #13751D

split-complementary

#133A75 #751D13 #6B7513

monochromatic

#040D1A #0A2040 #133A75 #1C54AA #276FDC

Accessibility & contrast

On white

11.11

#133A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#133A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A75

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A75	#FFFFFF	#000000	##FFFFFF
##133A75	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184077

Deuteranopia (green-blind)

#003774

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #133a75;
/* rgb */ color: rgb(19, 58, 117);
/* oklch */ color: oklch(35.7% 0.111 258.9);

Tailwind

colors: {
  custom: {
    50: '#626f9d',
    500: '#133a75',
    950: '#000000',
  },
}

SCSS

$custom: #133a75;
$custom-light: #626f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#133a75",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 216.122,
    "s": 72.059,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35747,
    "c": 0.1105,
    "h": 258.9
  },
  "luminance": 0.04449
}

Semantic roles & 50–950 ramp

primary

#133A75

secondary

#AB7E38

accent

#A639EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133A75

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

Preview Lab → · Contrast checker → · Palette generator →