#3A31B6#3A31B6

#3A31B6 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 42.1% C 0.199 H 276.5°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#3A31B6
RGB	rgb(58, 49, 182)
HSL	hsl(244, 58%, 45%)
HSV	hsv(244, 73%, 71%)
CMYK	cmyk(68.1%, 73.1%, 0%, 28.6%)
CIE-LAB	lab(30.57, 44.99, -68.57)
CIE-LCH	lch(30.57, 82.01, 303.27°)
OKLab	oklab(42.08% 0.0226 -0.1981)
OKLCH	oklch(42.08% 0.199 276.5)
XYZ	xyz(11.2840, 6.4726, 44.9016)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.08

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A31B6 #ADB631

analogous

#316BB6 #3A31B6 #7C31B6

triadic

#3A31B6 #B63A31 #31B63A

tetradic

#3A31B6 #B6316B #ADB631 #31B67C

square

#3A31B6 #B6316B #ADB631 #31B67C

split-complementary

#3A31B6 #B67C31 #6BB631

monochromatic

#1B1756 #2B2486 #3A31B6 #5C53D1 #8A84DE

Accessibility & contrast

On white

9.15

#3A31B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3A31B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A31B6

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A31B6	#FFFFFF	#000000	##FFFFFF
##3A31B6	1.00	9.15	2.29	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBA

Deuteranopia (green-blind)

#0042B4

Tritanopia (blue-blind)

#005771

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3a31b6;
/* rgb */ color: rgb(58, 49, 182);
/* oklch */ color: oklch(42.1% 0.199 276.5);

Tailwind

colors: {
  custom: {
    50: '#816bcd',
    500: '#3a31b6',
    950: '#000000',
  },
}

SCSS

$custom: #3a31b6;
$custom-light: #816bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3a31b6",
  "rgb": {
    "r": 58,
    "g": 49,
    "b": 182
  },
  "hsl": {
    "h": 244.06,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42083,
    "c": 0.1994,
    "h": 276.5
  },
  "luminance": 0.06474
}

Semantic roles & 50–950 ramp

primary

#3A31B6

secondary

#C2C77C

accent

#E147D6

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3A31B6

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

Preview Lab → · Contrast checker → · Palette generator →