#3D40DD#3D40DD

#3D40DD is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.3% C 0.231 H 272.8°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#3D40DD
RGB	rgb(61, 64, 221)
HSL	hsl(239, 70%, 55%)
HSV	hsv(239, 72%, 87%)
CMYK	cmyk(72.4%, 71%, 0%, 13.3%)
CIE-LAB	lab(37.62, 49.50, -79.68)
CIE-LCH	lch(37.62, 93.80, 301.85°)
OKLab	oklab(48.31% 0.0114 -0.2305)
OKLCH	oklch(48.31% 0.231 272.8)
XYZ	xyz(16.8046, 9.8776, 69.4135)
Luminance	0.0988 (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

#3D40DD #DDDA3D

analogous

#3D90DD #3D40DD #8A3DDD

triadic

#3D40DD #DD3D40 #40DD3D

tetradic

#3D40DD #DD3D90 #DDDA3D #3DDD8A

square

#3D40DD #DD3D90 #DDDA3D #3DDD8A

split-complementary

#3D40DD #DD8A3D #90DD3D

monochromatic

#181A88 #2124BC #3D40DD #7173E6 #A5A7EF

Accessibility & contrast

On white

7.06

#3D40DD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#3D40DD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40DD

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40DD	#FFFFFF	#000000	##FFFFFF
##3D40DD	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E2

Deuteranopia (green-blind)

#0051DA

Tritanopia (blue-blind)

#006C8A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3d40dd;
/* rgb */ color: rgb(61, 64, 221);
/* oklch */ color: oklch(48.3% 0.231 272.8);

Tailwind

colors: {
  custom: {
    50: '#8a76e9',
    500: '#3d40dd',
    950: '#000000',
  },
}

SCSS

$custom: #3d40dd;
$custom-light: #8a76e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40dd",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 221
  },
  "hsl": {
    "h": 238.875,
    "s": 70.175,
    "l": 55.294
  },
  "oklch": {
    "l": 0.48305,
    "c": 0.2308,
    "h": 272.8
  },
  "luminance": 0.09879
}

Semantic roles & 50–950 ramp

primary

#3D40DD

secondary

#DCDB99

accent

#EA3BED

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3D40DD

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

Preview Lab → · Contrast checker → · Palette generator →