#31519D#31519D

#31519D is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.3% C 0.129 H 264.6°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#31519D
RGB	rgb(49, 81, 157)
HSL	hsl(222, 52%, 40%)
HSV	hsv(222, 69%, 62%)
CMYK	cmyk(68.8%, 48.4%, 0%, 38.4%)
CIE-LAB	lab(35.93, 14.49, -44.92)
CIE-LCH	lch(35.93, 47.20, 287.88°)
OKLab	oklab(45.27% -0.0121 -0.1287)
OKLCH	oklch(45.27% 0.129 264.6)
XYZ	xyz(10.2927, 8.9711, 33.0809)
Luminance	0.0897 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31519D #9D7D31

analogous

#31879D #31519D #47319D

triadic

#31519D #9D3151 #519D31

tetradic

#31519D #9D3187 #9D7D31 #319D47

square

#31519D #9D3187 #9D7D31 #319D47

split-complementary

#31519D #9D4731 #879D31

monochromatic

#142140 #22396E #31519D #466CC5 #7591D4

Accessibility & contrast

On white

7.52

#31519D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#31519D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31519D

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31519D	#FFFFFF	#000000	##FFFFFF
##31519D	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295AA0

Deuteranopia (green-blind)

#10509B

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #31519d;
/* rgb */ color: rgb(49, 81, 157);
/* oklch */ color: oklch(45.3% 0.129 264.6);

Tailwind

colors: {
  custom: {
    50: '#7681ba',
    500: '#31519d',
    950: '#000000',
  },
}

SCSS

$custom: #31519d;
$custom-light: #7681ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31519d",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 157
  },
  "hsl": {
    "h": 222.222,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.45268,
    "c": 0.12926,
    "h": 264.6
  },
  "luminance": 0.08972
}

Semantic roles & 50–950 ramp

primary

#31519D

secondary

#BCA56E

accent

#B14CDC

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #31519D

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

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