#3B3FA8#3B3FA8

#3B3FA8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.165 H 275.4°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3B3FA8
RGB	rgb(59, 63, 168)
HSL	hsl(238, 48%, 45%)
HSV	hsv(238, 65%, 66%)
CMYK	cmyk(64.9%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(32.50, 31.95, -57.04)
CIE-LCH	lch(32.50, 65.38, 299.25°)
OKLab	oklab(43.11% 0.0154 -0.1643)
OKLCH	oklch(43.11% 0.165 275.4)
XYZ	xyz(10.6467, 7.3111, 37.8883)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.81

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B3FA8 #A8A43B

analogous

#3B76A8 #3B3FA8 #6E3BA8

triadic

#3B3FA8 #A83B3F #3FA83B

tetradic

#3B3FA8 #A83B76 #A8A43B #3BA86E

square

#3B3FA8 #A83B76 #A8A43B #3BA86E

split-complementary

#3B3FA8 #A86E3B #76A83B

monochromatic

#1B1D4D #2B2E7B #3B3FA8 #5B5FC5 #888BD5

Accessibility & contrast

On white

8.53

#3B3FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3B3FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B3FA8

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B3FA8	#FFFFFF	#000000	##FFFFFF
##3B3FA8	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0048A6

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3b3fa8;
/* rgb */ color: rgb(59, 63, 168);
/* oklch */ color: oklch(43.1% 0.165 275.4);

Tailwind

colors: {
  custom: {
    50: '#7e74c3',
    500: '#3b3fa8',
    950: '#000000',
  },
}

SCSS

$custom: #3b3fa8;
$custom-light: #7e74c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3b3fa8",
  "rgb": {
    "r": 59,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 237.798,
    "s": 48.018,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43109,
    "c": 0.16506,
    "h": 275.4
  },
  "luminance": 0.07312
}

Semantic roles & 50–950 ramp

primary

#3B3FA8

secondary

#C0BD7F

accent

#D350D8

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3B3FA8

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

Preview Lab → · Contrast checker → · Palette generator →