#31519A#31519A

#31519A is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.1% C 0.125 H 264.2°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#31519A
RGB	rgb(49, 81, 154)
HSL	hsl(222, 52%, 40%)
HSV	hsv(222, 68%, 60%)
CMYK	cmyk(68.2%, 47.4%, 0%, 39.6%)
CIE-LAB	lab(35.73, 13.37, -43.43)
CIE-LCH	lch(35.73, 45.44, 287.11°)
OKLab	oklab(45.06% -0.0126 -0.1243)
OKLCH	oklch(45.06% 0.125 264.2)
XYZ	xyz(10.0397, 8.8699, 31.7486)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31519A #9A7A31

analogous

#31869A #31519A #45319A

triadic

#31519A #9A3151 #519A31

tetradic

#31519A #9A3186 #9A7A31 #319A45

square

#31519A #9A3186 #9A7A31 #319A45

split-complementary

#31519A #9A4531 #869A31

monochromatic

#13203D #22396C #31519A #456BC4 #7390D2

Accessibility & contrast

On white

7.57

#31519A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#31519A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31519A

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31519A	#FFFFFF	#000000	##FFFFFF
##31519A	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C599D

Deuteranopia (green-blind)

#175098

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #31519a;
/* rgb */ color: rgb(49, 81, 154);
/* oklch */ color: oklch(45.1% 0.125 264.2);

Tailwind

colors: {
  custom: {
    50: '#7581b8',
    500: '#31519a',
    950: '#000000',
  },
}

SCSS

$custom: #31519a;
$custom-light: #7581b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31519a",
  "rgb": {
    "r": 49,
    "g": 81,
    "b": 154
  },
  "hsl": {
    "h": 221.714,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.45055,
    "c": 0.12494,
    "h": 264.2
  },
  "luminance": 0.08871
}

Semantic roles & 50–950 ramp

primary

#31519A

secondary

#BAA36C

accent

#B04DDB

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #31519A

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

Preview Lab → · Contrast checker → · Palette generator →