#3B3FA3#3B3FA3

#3B3FA3 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.158 H 275.7°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3B3FA3
RGB	rgb(59, 63, 163)
HSL	hsl(238, 47%, 44%)
HSV	hsv(238, 64%, 64%)
CMYK	cmyk(63.8%, 61.3%, 0%, 36.1%)
CIE-LAB	lab(32.10, 30.21, -54.70)
CIE-LCH	lch(32.10, 62.49, 298.91°)
OKLab	oklab(42.68% 0.0156 -0.1575)
OKLCH	oklch(42.68% 0.158 275.7)
XYZ	xyz(10.1898, 7.1283, 35.4822)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B3FA3 #A39F3B

analogous

#3B73A3 #3B3FA3 #6B3BA3

triadic

#3B3FA3 #A33B3F #3FA33B

tetradic

#3B3FA3 #A33B73 #A39F3B #3BA36B

square

#3B3FA3 #A33B73 #A39F3B #3BA36B

split-complementary

#3B3FA3 #A36B3B #73A33B

monochromatic

#1A1C49 #2B2E76 #3B3FA3 #585DC3 #8588D3

Accessibility & contrast

On white

8.66

#3B3FA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3B3FA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B3FA3

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B3FA3	#FFFFFF	#000000	##FFFFFF
##3B3FA3	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A6

Deuteranopia (green-blind)

#0047A1

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3b3fa3;
/* rgb */ color: rgb(59, 63, 163);
/* oklch */ color: oklch(42.7% 0.158 275.7);

Tailwind

colors: {
  custom: {
    50: '#7d74bf',
    500: '#3b3fa3',
    950: '#000000',
  },
}

SCSS

$custom: #3b3fa3;
$custom-light: #7d74bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b3fa3",
  "rgb": {
    "r": 59,
    "g": 63,
    "b": 163
  },
  "hsl": {
    "h": 237.692,
    "s": 46.847,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42681,
    "c": 0.15824,
    "h": 275.7
  },
  "luminance": 0.07129
}

Semantic roles & 50–950 ramp

primary

#3B3FA3

secondary

#BDBB7D

accent

#D151D6

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3B3FA3

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

Preview Lab → · Contrast checker → · Palette generator →