#131D4F#131D4F

#131D4F is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.093 H 270.0°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#131D4F
RGB	rgb(19, 29, 79)
HSL	hsl(230, 61%, 19%)
HSV	hsv(230, 76%, 31%)
CMYK	cmyk(75.9%, 63.3%, 0%, 69%)
CIE-LAB	lab(13.12, 15.21, -32.11)
CIE-LCH	lch(13.12, 35.53, 295.35°)
OKLab	oklab(25.69% 0.0001 -0.0925)
OKLCH	oklch(25.69% 0.093 270)
XYZ	xyz(2.1187, 1.5815, 7.5892)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131D4F #4F4513

analogous

#133B4F #131D4F #27134F

triadic

#131D4F #4F131D #1D4F13

tetradic

#131D4F #4F133B #4F4513 #134F27

square

#131D4F #4F133B #4F4513 #134F27

split-complementary

#131D4F #4F2713 #3B4F13

monochromatic

#060919 #070B1E #131D4F #1F2F80 #2B41B2

Accessibility & contrast

On white

15.95

#131D4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#131D4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131D4F

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131D4F	#FFFFFF	#000000	##FFFFFF
##131D4F	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002551

Deuteranopia (green-blind)

#001F4E

Tritanopia (blue-blind)

#002932

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #131d4f;
/* rgb */ color: rgb(19, 29, 79);
/* oklch */ color: oklch(25.7% 0.093 270.0);

Tailwind

colors: {
  custom: {
    50: '#5a5881',
    500: '#131d4f',
    950: '#000000',
  },
}

SCSS

$custom: #131d4f;
$custom-light: #5a5881;
$custom-dark: #000000;

JSON

{
  "hex": "#131d4f",
  "rgb": {
    "r": 19,
    "g": 29,
    "b": 79
  },
  "hsl": {
    "h": 230,
    "s": 61.224,
    "l": 19.216
  },
  "oklch": {
    "l": 0.25685,
    "c": 0.09251,
    "h": 270
  },
  "luminance": 0.01582
}

Semantic roles & 50–950 ramp

primary

#131D4F

secondary

#887A36

accent

#CA43E4

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #131D4F

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

Preview Lab → · Contrast checker → · Palette generator →