#133B7E#133B7E

#133B7E is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.7% C 0.122 H 260.2°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#133B7E
RGB	rgb(19, 59, 126)
HSL	hsl(218, 74%, 28%)
HSV	hsv(218, 85%, 49%)
CMYK	cmyk(84.9%, 53.2%, 0%, 50.6%)
CIE-LAB	lab(26.08, 13.17, -41.83)
CIE-LCH	lch(26.08, 43.85, 287.47°)
OKLab	oklab(36.71% -0.0207 -0.1205)
OKLCH	oklch(36.71% 0.122 260.2)
XYZ	xyz(5.5970, 4.7721, 20.3607)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#133B7E #7E5613

analogous

#13707E #133B7E #20137E

triadic

#133B7E #7E133B #3B7E13

tetradic

#133B7E #7E1370 #7E5613 #137E20

square

#133B7E #7E1370 #7E5613 #137E20

split-complementary

#133B7E #7E2013 #707E13

monochromatic

#040C1B #0B2249 #133B7E #1B54B3 #2C6FDF

Accessibility & contrast

On white

10.74

#133B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#133B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #133B7E

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##133B7E	#FFFFFF	#000000	##FFFFFF
##133B7E	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4380

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #133b7e;
/* rgb */ color: rgb(19, 59, 126);
/* oklch */ color: oklch(36.7% 0.122 260.2);

Tailwind

colors: {
  custom: {
    50: '#6570a4',
    500: '#133b7e',
    950: '#000000',
  },
}

SCSS

$custom: #133b7e;
$custom-light: #6570a4;
$custom-dark: #000000;

JSON

{
  "hex": "#133b7e",
  "rgb": {
    "r": 19,
    "g": 59,
    "b": 126
  },
  "hsl": {
    "h": 217.57,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36706,
    "c": 0.12228,
    "h": 260.2
  },
  "luminance": 0.04773
}

Semantic roles & 50–950 ramp

primary

#133B7E

secondary

#B48639

accent

#AB37F0

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #133B7E

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

Preview Lab → · Contrast checker → · Palette generator →