#31419B#31419B

#31419B is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.147 H 271.0°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#31419B
RGB	rgb(49, 65, 155)
HSL	hsl(231, 52%, 40%)
HSV	hsv(231, 68%, 61%)
CMYK	cmyk(68.4%, 58.1%, 0%, 39.2%)
CIE-LAB	lab(31.35, 24.42, -51.12)
CIE-LCH	lch(31.35, 56.65, 295.54°)
OKLab	oklab(41.76% 0.0025 -0.1472)
OKLCH	oklch(41.76% 0.147 271)
XYZ	xyz(9.0713, 6.7993, 31.8383)
Luminance	0.0680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31419B #9B8B31

analogous

#31769B #31419B #56319B

triadic

#31419B #9B3141 #419B31

tetradic

#31419B #9B3176 #9B8B31 #319B56

square

#31419B #9B3176 #9B8B31 #319B56

split-complementary

#31419B #9B5631 #769B31

monochromatic

#141A3E #222E6D #31419B #4558C4 #7382D3

Accessibility & contrast

On white

8.90

#31419B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#31419B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31419B

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31419B	#FFFFFF	#000000	##FFFFFF
##31419B	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004F9E

Deuteranopia (green-blind)

#004599

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31419b;
/* rgb */ color: rgb(49, 65, 155);
/* oklch */ color: oklch(41.8% 0.147 271.0);

Tailwind

colors: {
  custom: {
    50: '#7675b9',
    500: '#31419b',
    950: '#000000',
  },
}

SCSS

$custom: #31419b;
$custom-light: #7675b9;
$custom-dark: #000000;

JSON

{
  "hex": "#31419b",
  "rgb": {
    "r": 49,
    "g": 65,
    "b": 155
  },
  "hsl": {
    "h": 230.943,
    "s": 51.961,
    "l": 40
  },
  "oklch": {
    "l": 0.41757,
    "c": 0.14718,
    "h": 271
  },
  "luminance": 0.068
}

Semantic roles & 50–950 ramp

primary

#31419B

secondary

#BBAF6D

accent

#C64CDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31419B

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

Preview Lab → · Contrast checker → · Palette generator →