#3833BC#3833BC

#3833BC is a dark, highly saturated blue. Relative luminance 0.068; OKLCH L 42.8% C 0.205 H 275.0°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#3833BC
RGB	rgb(56, 51, 188)
HSL	hsl(242, 57%, 47%)
HSV	hsv(242, 73%, 74%)
CMYK	cmyk(70.2%, 72.9%, 0%, 26.3%)
CIE-LAB	lab(31.44, 45.59, -70.70)
CIE-LCH	lch(31.44, 84.13, 302.82°)
OKLab	oklab(42.84% 0.0178 -0.2044)
OKLCH	oklch(42.84% 0.205 275)
XYZ	xyz(11.8888, 6.8381, 48.2605)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Sapphire (survey)

#2138AB

ΔE00 4.07

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3833BC #B7BC33

analogous

#3373BC #3833BC #7D33BC

triadic

#3833BC #BC3833 #33BC38

tetradic

#3833BC #BC3373 #B7BC33 #33BC7D

square

#3833BC #BC3373 #B7BC33 #33BC7D

split-complementary

#3833BC #BC7D33 #73BC33

monochromatic

#1B195C #2A268C #3833BC #5E5AD2 #8D8ADF

Accessibility & contrast

On white

8.87

#3833BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3833BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3833BC

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3833BC	#FFFFFF	#000000	##FFFFFF
##3833BC	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050C0

Deuteranopia (green-blind)

#0044BA

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3833bc;
/* rgb */ color: rgb(56, 51, 188);
/* oklch */ color: oklch(42.8% 0.205 275.0);

Tailwind

colors: {
  custom: {
    50: '#826cd1',
    500: '#3833bc',
    950: '#000000',
  },
}

SCSS

$custom: #3833bc;
$custom-light: #826cd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3833bc",
  "rgb": {
    "r": 56,
    "g": 51,
    "b": 188
  },
  "hsl": {
    "h": 242.19,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.42838,
    "c": 0.20519,
    "h": 275
  },
  "luminance": 0.06839
}

Semantic roles & 50–950 ramp

primary

#3833BC

secondary

#C7C981

accent

#E147DB

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3833BC

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

Preview Lab → · Contrast checker → · Palette generator →