#3830BB#3830BB

#3830BB is a dark, highly saturated blue. Relative luminance 0.065; OKLCH L 42.3% C 0.207 H 275.4°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#3830BB
RGB	rgb(56, 48, 187)
HSL	hsl(243, 59%, 46%)
HSV	hsv(243, 74%, 73%)
CMYK	cmyk(70.1%, 74.3%, 0%, 26.7%)
CIE-LAB	lab(30.74, 46.94, -71.26)
CIE-LCH	lch(30.74, 85.33, 303.37°)
OKLab	oklab(42.31% 0.0197 -0.206)
OKLCH	oklch(42.31% 0.207 275.4)
XYZ	xyz(11.6545, 6.5414, 47.6525)
Luminance	0.0654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.38

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3830BB #B3BB30

analogous

#306DBB #3830BB #7D30BB

triadic

#3830BB #BB3830 #30BB38

tetradic

#3830BB #BB306D #B3BB30 #30BB7D

square

#3830BB #BB306D #B3BB30 #30BB7D

split-complementary

#3830BB #BB7D30 #6DBB30

monochromatic

#1B175A #29238A #3830BB #5C55D3 #8B86E0

Accessibility & contrast

On white

9.10

#3830BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3830BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3830BB

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3830BB	#FFFFFF	#000000	##FFFFFF
##3830BB	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EBF

Deuteranopia (green-blind)

#0042B9

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3830bb;
/* rgb */ color: rgb(56, 48, 187);
/* oklch */ color: oklch(42.3% 0.207 275.4);

Tailwind

colors: {
  custom: {
    50: '#826ad1',
    500: '#3830bb',
    950: '#000000',
  },
}

SCSS

$custom: #3830bb;
$custom-light: #826ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3830bb",
  "rgb": {
    "r": 56,
    "g": 48,
    "b": 187
  },
  "hsl": {
    "h": 243.453,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.42313,
    "c": 0.20695,
    "h": 275.4
  },
  "luminance": 0.06543
}

Semantic roles & 50–950 ramp

primary

#3830BB

secondary

#C5C97D

accent

#E245D9

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3830BB

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

Preview Lab → · Contrast checker → · Palette generator →