#133B7F#133B7F

#133B7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.8% C 0.124 H 260.4°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#133B7F
RGB	rgb(19, 59, 127)
HSL	hsl(218, 74%, 29%)
HSV	hsv(218, 85%, 50%)
CMYK	cmyk(85%, 53.5%, 0%, 50.2%)
CIE-LAB	lab(26.15, 13.59, -42.33)
CIE-LCH	lch(26.15, 44.46, 287.80°)
OKLab	oklab(36.79% -0.0206 -0.122)
OKLCH	oklch(36.79% 0.124 260.4)
XYZ	xyz(5.6619, 4.7980, 20.7023)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B7F #7F5713

analogous

#13717F #133B7F #21137F

triadic

#133B7F #7F133B #3B7F13

tetradic

#133B7F #7F1371 #7F5713 #137F21

square

#133B7F #7F1371 #7F5713 #137F21

split-complementary

#133B7F #7F2113 #717F13

monochromatic

#040C1B #0B224A #133B7F #1B54B4 #2D6FE0

Accessibility & contrast

On white

10.72

#133B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#133B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7F

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B7F	#FFFFFF	#000000	##FFFFFF
##133B7F	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4381

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #133b7f;
/* rgb */ color: rgb(19, 59, 127);
/* oklch */ color: oklch(36.8% 0.124 260.4);

Tailwind

colors: {
  custom: {
    50: '#6570a5',
    500: '#133b7f',
    950: '#000000',
  },
}

SCSS

$custom: #133b7f;
$custom-light: #6570a5;
$custom-dark: #000000;

JSON

{
  "hex": "#133b7f",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 217.778,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36788,
    "c": 0.12372,
    "h": 260.4
  },
  "luminance": 0.04799
}

Semantic roles & 50–950 ramp

primary

#133B7F

secondary

#B48739

accent

#AC37F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133B7F

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

Preview Lab → · Contrast checker → · Palette generator →