#131E5B#131E5B

#131E5B is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.1% C 0.110 H 269.6°. Best body text is #FFFFFF at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#131E5B
RGB	rgb(19, 30, 91)
HSL	hsl(231, 65%, 22%)
HSV	hsv(231, 79%, 36%)
CMYK	cmyk(79.1%, 67%, 0%, 64.3%)
CIE-LAB	lab(14.52, 19.48, -37.93)
CIE-LCH	lch(14.52, 42.64, 297.18°)
OKLab	oklab(27.08% -0.0008 -0.1096)
OKLCH	oklch(27.08% 0.11 269.6)
XYZ	xyz(2.6205, 1.8220, 10.1091)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#131E5B #5B5013

analogous

#13425B #131E5B #2C135B

triadic

#131E5B #5B131E #1E5B13

tetradic

#131E5B #5B1342 #5B5013 #135B2C

square

#131E5B #5B1342 #5B5013 #135B2C

split-complementary

#131E5B #5B2C13 #425B13

monochromatic

#050819 #080D28 #131E5B #1E2F8E #283FC0

Accessibility & contrast

On white

15.39

#131E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#131E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #131E5B

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##131E5B	#FFFFFF	#000000	##FFFFFF
##131E5B	1.00	15.39	1.36	15.39
#FFFFFF	15.39	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00285D

Deuteranopia (green-blind)

#00215A

Tritanopia (blue-blind)

#002E39

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #131e5b;
/* rgb */ color: rgb(19, 30, 91);
/* oklch */ color: oklch(27.1% 0.110 269.6);

Tailwind

colors: {
  custom: {
    50: '#5d598a',
    500: '#131e5b',
    950: '#000000',
  },
}

SCSS

$custom: #131e5b;
$custom-light: #5d598a;
$custom-dark: #000000;

JSON

{
  "hex": "#131e5b",
  "rgb": {
    "r": 19,
    "g": 30,
    "b": 91
  },
  "hsl": {
    "h": 230.833,
    "s": 65.455,
    "l": 21.569
  },
  "oklch": {
    "l": 0.27077,
    "c": 0.1096,
    "h": 269.6
  },
  "luminance": 0.01822
}

Semantic roles & 50–950 ramp

primary

#131E5B

secondary

#938537

accent

#CF3FE8

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #131E5B

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

Preview Lab → · Contrast checker → · Palette generator →