#131F5E#131F5E

#131F5E is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.6% C 0.113 H 269.1°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#131F5E
RGB	rgb(19, 31, 94)
HSL	hsl(230, 66%, 22%)
HSV	hsv(230, 80%, 37%)
CMYK	cmyk(79.8%, 67%, 0%, 63.1%)
CIE-LAB	lab(15.10, 19.99, -39.00)
CIE-LCH	lch(15.10, 43.83, 297.13°)
OKLab	oklab(27.59% -0.0017 -0.1127)
OKLCH	oklch(27.59% 0.113 269.1)
XYZ	xyz(2.7782, 1.9263, 10.8129)
Luminance	0.0193 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131F5E #5E5213

analogous

#13455E #131F5E #2D135E

triadic

#131F5E #5E131F #1F5E13

tetradic

#131F5E #5E1345 #5E5213 #135E2D

square

#131F5E #5E1345 #5E5213 #135E2D

split-complementary

#131F5E #5E2D13 #455E13

monochromatic

#050819 #090E2B #131F5E #1D3091 #2841C4

Accessibility & contrast

On white

15.16

#131F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#131F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131F5E

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131F5E	#FFFFFF	#000000	##FFFFFF
##131F5E	1.00	15.16	1.39	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002960

Deuteranopia (green-blind)

#00225D

Tritanopia (blue-blind)

#002F3B

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #131f5e;
/* rgb */ color: rgb(19, 31, 94);
/* oklch */ color: oklch(27.6% 0.113 269.1);

Tailwind

colors: {
  custom: {
    50: '#5e5a8c',
    500: '#131f5e',
    950: '#000000',
  },
}

SCSS

$custom: #131f5e;
$custom-light: #5e5a8c;
$custom-dark: #000000;

JSON

{
  "hex": "#131f5e",
  "rgb": {
    "r": 19,
    "g": 31,
    "b": 94
  },
  "hsl": {
    "h": 230.4,
    "s": 66.372,
    "l": 22.157
  },
  "oklch": {
    "l": 0.27588,
    "c": 0.11274,
    "h": 269.1
  },
  "luminance": 0.01927
}

Semantic roles & 50–950 ramp

primary

#131F5E

secondary

#968737

accent

#CE3FE9

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131F5E

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

Preview Lab → · Contrast checker → · Palette generator →