#133A74#133A74

#133A74 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.109 H 258.6°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#133A74
RGB	rgb(19, 58, 116)
HSL	hsl(216, 72%, 26%)
HSV	hsv(216, 84%, 45%)
CMYK	cmyk(83.6%, 50%, 0%, 54.5%)
CIE-LAB	lab(25.03, 9.65, -37.19)
CIE-LCH	lch(25.03, 38.43, 284.55°)
OKLab	oklab(35.67% -0.0215 -0.1069)
OKLCH	oklch(35.67% 0.109 258.6)
XYZ	xyz(4.9328, 4.4249, 17.1137)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133A74 #744D13

analogous

#136B74 #133A74 #1C1374

triadic

#133A74 #74133A #3A7413

tetradic

#133A74 #74136B #744D13 #13741C

square

#133A74 #74136B #744D13 #13741C

split-complementary

#133A74 #741C13 #6B7413

monochromatic

#040D1A #0A203F #133A74 #1C54A9 #266FDB

Accessibility & contrast

On white

11.14

#133A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#133A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133A74

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133A74	#FFFFFF	#000000	##FFFFFF
##133A74	1.00	11.14	1.89	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194076

Deuteranopia (green-blind)

#003773

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #133a74;
/* rgb */ color: rgb(19, 58, 116);
/* oklch */ color: oklch(35.7% 0.109 258.6);

Tailwind

colors: {
  custom: {
    50: '#626f9c',
    500: '#133a74',
    950: '#000000',
  },
}

SCSS

$custom: #133a74;
$custom-light: #626f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#133a74",
  "rgb": {
    "r": 19,
    "g": 58,
    "b": 116
  },
  "hsl": {
    "h": 215.876,
    "s": 71.852,
    "l": 26.471
  },
  "oklch": {
    "l": 0.35668,
    "c": 0.10903,
    "h": 258.6
  },
  "luminance": 0.04426
}

Semantic roles & 50–950 ramp

primary

#133A74

secondary

#AA7D38

accent

#A639EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #133A74

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

Preview Lab → · Contrast checker → · Palette generator →