#133D7F#133D7F

#133D7F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.3% C 0.121 H 259.5°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#133D7F
RGB	rgb(19, 61, 127)
HSL	hsl(217, 74%, 29%)
HSV	hsv(217, 85%, 50%)
CMYK	cmyk(85%, 52%, 0%, 50.2%)
CIE-LAB	lab(26.76, 12.18, -41.35)
CIE-LCH	lch(26.76, 43.11, 286.41°)
OKLab	oklab(37.25% -0.0221 -0.1191)
OKLCH	oklch(37.25% 0.121 259.5)
XYZ	xyz(5.7667, 5.0075, 20.7372)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133D7F #7F5513

analogous

#13737F #133D7F #1F137F

triadic

#133D7F #7F133D #3D7F13

tetradic

#133D7F #7F1373 #7F5513 #137F1F

square

#133D7F #7F1373 #7F5513 #137F1F

split-complementary

#133D7F #7F1F13 #737F13

monochromatic

#040D1B #0B234A #133D7F #1B57B4 #2D72E0

Accessibility & contrast

On white

10.49

#133D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#133D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133D7F

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133D7F	#FFFFFF	#000000	##FFFFFF
##133D7F	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134481

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #133d7f;
/* rgb */ color: rgb(19, 61, 127);
/* oklch */ color: oklch(37.3% 0.121 259.5);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#133d7f',
    950: '#000000',
  },
}

SCSS

$custom: #133d7f;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#133d7f",
  "rgb": {
    "r": 19,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 216.667,
    "s": 73.973,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37251,
    "c": 0.12111,
    "h": 259.5
  },
  "luminance": 0.05008
}

Semantic roles & 50–950 ramp

primary

#133D7F

secondary

#B48539

accent

#A937F1

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133D7F

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

Preview Lab → · Contrast checker → · Palette generator →