#3B30BB#3B30BB

#3B30BB is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.5% C 0.206 H 276.5°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#3B30BB
RGB	rgb(59, 48, 187)
HSL	hsl(245, 59%, 46%)
HSV	hsv(245, 74%, 73%)
CMYK	cmyk(68.4%, 74.3%, 0%, 26.7%)
CIE-LAB	lab(30.95, 47.25, -70.91)
CIE-LCH	lch(30.95, 85.21, 303.68°)
OKLab	oklab(42.52% 0.0235 -0.2049)
OKLCH	oklch(42.52% 0.206 276.5)
XYZ	xyz(11.8273, 6.6305, 47.6606)
Luminance	0.0663 (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

#3B30BB #B0BB30

analogous

#306ABB #3B30BB #8030BB

triadic

#3B30BB #BB3B30 #30BB3B

tetradic

#3B30BB #BB306A #B0BB30 #30BB80

square

#3B30BB #BB306A #B0BB30 #30BB80

split-complementary

#3B30BB #BB8030 #6ABB30

monochromatic

#1C175A #2C238A #3B30BB #5F55D3 #8D86E0

Accessibility & contrast

On white

9.03

#3B30BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3B30BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B30BB

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B30BB	#FFFFFF	#000000	##FFFFFF
##3B30BB	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBF

Deuteranopia (green-blind)

#0043B8

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3b30bb;
/* rgb */ color: rgb(59, 48, 187);
/* oklch */ color: oklch(42.5% 0.206 276.5);

Tailwind

colors: {
  custom: {
    50: '#836bd1',
    500: '#3b30bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b30bb;
$custom-light: #836bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b30bb",
  "rgb": {
    "r": 59,
    "g": 48,
    "b": 187
  },
  "hsl": {
    "h": 244.748,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42518,
    "c": 0.20626,
    "h": 276.5
  },
  "luminance": 0.06632
}

Semantic roles & 50–950 ramp

primary

#3B30BB

secondary

#C3C97D

accent

#E245D6

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3B30BB

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

Preview Lab → · Contrast checker → · Palette generator →