#3131B6#3131B6

#3131B6 is a dark, highly saturated blue. Relative luminance 0.062; OKLCH L 41.5% C 0.202 H 273.3°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#3131B6
RGB	rgb(49, 49, 182)
HSL	hsl(240, 58%, 45%)
HSV	hsv(240, 73%, 71%)
CMYK	cmyk(73.1%, 73.1%, 0%, 28.6%)
CIE-LAB	lab(29.98, 44.05, -69.57)
CIE-LCH	lch(29.98, 82.35, 302.34°)
OKLab	oklab(41.5% 0.0115 -0.2013)
OKLCH	oklch(41.5% 0.202 273.3)
XYZ	xyz(10.8056, 6.2259, 44.8791)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3131B6 #B6B631

analogous

#3173B6 #3131B6 #7331B6

triadic

#3131B6 #B63131 #31B631

tetradic

#3131B6 #B63173 #B6B631 #31B673

square

#3131B6 #B63173 #B6B631 #31B673

split-complementary

#3131B6 #B67331 #73B631

monochromatic

#171756 #242486 #3131B6 #5353D1 #8484DE

Accessibility & contrast

On white

9.35

#3131B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3131B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131B6

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131B6	#FFFFFF	#000000	##FFFFFF
##3131B6	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DBA

Deuteranopia (green-blind)

#0040B4

Tritanopia (blue-blind)

#005770

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3131b6;
/* rgb */ color: rgb(49, 49, 182);
/* oklch */ color: oklch(41.5% 0.202 273.3);

Tailwind

colors: {
  custom: {
    50: '#7e6bcd',
    500: '#3131b6',
    950: '#000000',
  },
}

SCSS

$custom: #3131b6;
$custom-light: #7e6bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3131b6",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 182
  },
  "hsl": {
    "h": 240,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.41499,
    "c": 0.20161,
    "h": 273.3
  },
  "luminance": 0.06227
}

Semantic roles & 50–950 ramp

primary

#3131B6

secondary

#C7C77C

accent

#E147E1

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3131B6

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

Preview Lab → · Contrast checker → · Palette generator →