#133F7E#133F7E

#133F7E is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.6% C 0.117 H 258.2°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#133F7E
RGB	rgb(19, 63, 126)
HSL	hsl(215, 74%, 28%)
HSV	hsv(215, 85%, 49%)
CMYK	cmyk(84.9%, 50%, 0%, 50.6%)
CIE-LAB	lab(27.29, 10.35, -39.86)
CIE-LCH	lch(27.29, 41.18, 284.56°)
OKLab	oklab(37.64% -0.0239 -0.1146)
OKLCH	oklch(37.64% 0.117 258.2)
XYZ	xyz(5.8106, 5.1991, 20.4319)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133F7E #7E5213

analogous

#13747E #133F7E #1C137E

triadic

#133F7E #7E133F #3F7E13

tetradic

#133F7E #7E1374 #7E5213 #137E1C

square

#133F7E #7E1374 #7E5213 #137E1C

split-complementary

#133F7E #7E1C13 #747E13

monochromatic

#040D1B #0B2449 #133F7E #1B5AB3 #2C76DF

Accessibility & contrast

On white

10.29

#133F7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#133F7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133F7E

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133F7E	#FFFFFF	#000000	##FFFFFF
##133F7E	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4680

Deuteranopia (green-blind)

#003C7D

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #133f7e;
/* rgb */ color: rgb(19, 63, 126);
/* oklch */ color: oklch(37.6% 0.117 258.2);

Tailwind

colors: {
  custom: {
    50: '#6573a4',
    500: '#133f7e',
    950: '#000000',
  },
}

SCSS

$custom: #133f7e;
$custom-light: #6573a4;
$custom-dark: #000000;

JSON

{
  "hex": "#133f7e",
  "rgb": {
    "r": 19,
    "g": 63,
    "b": 126
  },
  "hsl": {
    "h": 215.327,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37641,
    "c": 0.11709,
    "h": 258.2
  },
  "luminance": 0.052
}

Semantic roles & 50–950 ramp

primary

#133F7E

secondary

#B48139

accent

#A437F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #133F7E

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

Preview Lab → · Contrast checker → · Palette generator →