#131B6E#131B6E

#131B6E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.140 H 269.7°. Best body text is #FFFFFF at 14.90:1 contrast (WCAG AA passes).

Color values

HEX	#131B6E
RGB	rgb(19, 27, 110)
HSL	hsl(235, 71%, 25%)
HSV	hsv(235, 83%, 43%)
CMYK	cmyk(82.7%, 75.5%, 0%, 56.9%)
CIE-LAB	lab(15.74, 29.14, -48.49)
CIE-LCH	lch(15.74, 56.57, 301.01°)
OKLab	oklab(28.56% -0.0008 -0.1404)
OKLCH	oklch(28.56% 0.14 269.7)
XYZ	xyz(3.4740, 2.0477, 14.9610)
Luminance	0.0205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B6E #6E6613

analogous

#13496E #131B6E #38136E

triadic

#131B6E #6E131B #1B6E13

tetradic

#131B6E #6E1349 #6E6613 #136E38

square

#131B6E #6E1349 #6E6613 #136E38

split-complementary

#131B6E #6E3813 #496E13

monochromatic

#05061A #0A0E3A #131B6E #1C28A2 #2535D6

Accessibility & contrast

On white

14.90

#131B6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#131B6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B6E

14.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B6E	#FFFFFF	#000000	##FFFFFF
##131B6E	1.00	14.90	1.41	14.90
#FFFFFF	14.90	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C70

Deuteranopia (green-blind)

#00236D

Tritanopia (blue-blind)

#003342

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #131b6e;
/* rgb */ color: rgb(19, 27, 110);
/* oklch */ color: oklch(28.6% 0.140 269.7);

Tailwind

colors: {
  custom: {
    50: '#635899',
    500: '#131b6e',
    950: '#000000',
  },
}

SCSS

$custom: #131b6e;
$custom-light: #635899;
$custom-dark: #000000;

JSON

{
  "hex": "#131b6e",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 110
  },
  "hsl": {
    "h": 234.725,
    "s": 70.543,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28562,
    "c": 0.14044,
    "h": 269.7
  },
  "luminance": 0.02048
}

Semantic roles & 50–950 ramp

primary

#131B6E

secondary

#A59B38

accent

#DE3AED

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #131B6E

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

Preview Lab → · Contrast checker → · Palette generator →