#3B43DD#3B43DD

#3B43DD is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 48.6% C 0.228 H 271.9°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#3B43DD
RGB	rgb(59, 67, 221)
HSL	hsl(237, 70%, 55%)
HSV	hsv(237, 73%, 87%)
CMYK	cmyk(73.3%, 69.7%, 0%, 13.3%)
CIE-LAB	lab(38.13, 47.59, -78.84)
CIE-LCH	lch(38.13, 92.09, 301.12°)
OKLab	oklab(48.64% 0.0077 -0.2281)
OKLCH	oklch(48.64% 0.228 271.9)
XYZ	xyz(16.8575, 10.1628, 69.4658)
Luminance	0.1017 (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

#3B43DD #DDD53B

analogous

#3B94DD #3B43DD #843BDD

triadic

#3B43DD #DD3B43 #43DD3B

tetradic

#3B43DD #DD3B94 #DDD53B #3BDD84

square

#3B43DD #DD3B94 #DDD53B #3BDD84

split-complementary

#3B43DD #DD843B #94DD3B

monochromatic

#171D86 #2028BA #3B43DD #6F75E6 #A3A7EF

Accessibility & contrast

On white

6.92

#3B43DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#3B43DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B43DD

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B43DD	#FFFFFF	#000000	##FFFFFF
##3B43DD	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E2

Deuteranopia (green-blind)

#0052DA

Tritanopia (blue-blind)

#006E8B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3b43dd;
/* rgb */ color: rgb(59, 67, 221);
/* oklch */ color: oklch(48.6% 0.228 271.9);

Tailwind

colors: {
  custom: {
    50: '#8978e9',
    500: '#3b43dd',
    950: '#000000',
  },
}

SCSS

$custom: #3b43dd;
$custom-light: #8978e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b43dd",
  "rgb": {
    "r": 59,
    "g": 67,
    "b": 221
  },
  "hsl": {
    "h": 237.037,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.48642,
    "c": 0.22825,
    "h": 271.9
  },
  "luminance": 0.10165
}

Semantic roles & 50–950 ramp

primary

#3B43DD

secondary

#DCD998

accent

#E43BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #3B43DD

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

Preview Lab → · Contrast checker → · Palette generator →