#3A31B8#3A31B8

#3A31B8 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.3% C 0.202 H 276.3°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#3A31B8
RGB	rgb(58, 49, 184)
HSL	hsl(244, 58%, 46%)
HSV	hsv(244, 73%, 72%)
CMYK	cmyk(68.5%, 73.4%, 0%, 27.8%)
CIE-LAB	lab(30.77, 45.63, -69.42)
CIE-LCH	lch(30.77, 83.08, 303.32°)
OKLab	oklab(42.28% 0.0223 -0.2006)
OKLCH	oklch(42.28% 0.202 276.3)
XYZ	xyz(11.4921, 6.5558, 45.9979)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.20

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A31B8 #AFB831

analogous

#316BB8 #3A31B8 #7D31B8

triadic

#3A31B8 #B83A31 #31B83A

tetradic

#3A31B8 #B8316B #AFB831 #31B87D

square

#3A31B8 #B8316B #AFB831 #31B87D

split-complementary

#3A31B8 #B87D31 #6BB831

monochromatic

#1C1757 #2B2488 #3A31B8 #5D55D2 #8B85DE

Accessibility & contrast

On white

9.09

#3A31B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3A31B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A31B8

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A31B8	#FFFFFF	#000000	##FFFFFF
##3A31B8	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBC

Deuteranopia (green-blind)

#0042B6

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3a31b8;
/* rgb */ color: rgb(58, 49, 184);
/* oklch */ color: oklch(42.3% 0.202 276.3);

Tailwind

colors: {
  custom: {
    50: '#826bcf',
    500: '#3a31b8',
    950: '#000000',
  },
}

SCSS

$custom: #3a31b8;
$custom-light: #826bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3a31b8",
  "rgb": {
    "r": 58,
    "g": 49,
    "b": 184
  },
  "hsl": {
    "h": 244,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42284,
    "c": 0.20185,
    "h": 276.3
  },
  "luminance": 0.06557
}

Semantic roles & 50–950 ramp

primary

#3A31B8

secondary

#C3C87D

accent

#E147D7

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3A31B8

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

Preview Lab → · Contrast checker → · Palette generator →