#131B7E#131B7E

#131B7E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.4% C 0.161 H 268.9°. Best body text is #FFFFFF at 14.13:1 contrast (WCAG AA passes).

Color values

HEX	#131B7E
RGB	rgb(19, 27, 126)
HSL	hsl(236, 74%, 28%)
HSV	hsv(236, 85%, 49%)
CMYK	cmyk(84.9%, 78.6%, 0%, 50.6%)
CIE-LAB	lab(17.59, 35.09, -55.72)
CIE-LCH	lch(17.59, 65.85, 302.20°)
OKLab	oklab(30.43% -0.0032 -0.1614)
OKLCH	oklch(30.43% 0.161 268.9)
XYZ	xyz(4.4251, 2.4281, 19.9701)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131B7E #7E7613

analogous

#13507E #131B7E #40137E

triadic

#131B7E #7E131B #1B7E13

tetradic

#131B7E #7E1350 #7E7613 #137E40

square

#131B7E #7E1350 #7E7613 #137E40

split-complementary

#131B7E #7E4013 #507E13

monochromatic

#04061B #0B1049 #131B7E #1B26B3 #2C3ADF

Accessibility & contrast

On white

14.13

#131B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#131B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131B7E

14.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131B7E	#FFFFFF	#000000	##FFFFFF
##131B7E	1.00	14.13	1.49	14.13
#FFFFFF	14.13	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003081

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00394B

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #131b7e;
/* rgb */ color: rgb(19, 27, 126);
/* oklch */ color: oklch(30.4% 0.161 268.9);

Tailwind

colors: {
  custom: {
    50: '#6859a5',
    500: '#131b7e',
    950: '#000000',
  },
}

SCSS

$custom: #131b7e;
$custom-light: #6859a5;
$custom-dark: #000000;

JSON

{
  "hex": "#131b7e",
  "rgb": {
    "r": 19,
    "g": 27,
    "b": 126
  },
  "hsl": {
    "h": 235.514,
    "s": 73.793,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30433,
    "c": 0.16148,
    "h": 268.9
  },
  "luminance": 0.02429
}

Semantic roles & 50–950 ramp

primary

#131B7E

secondary

#B4AA39

accent

#E337F0

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #131B7E

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

Preview Lab → · Contrast checker → · Palette generator →