#3D40BD#3D40BD

#3D40BD is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.3% C 0.191 H 274.6°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#3D40BD
RGB	rgb(61, 64, 189)
HSL	hsl(239, 51%, 49%)
HSV	hsv(239, 68%, 74%)
CMYK	cmyk(67.7%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.66, 38.84, -65.97)
CIE-LCH	lch(34.66, 76.56, 300.48°)
OKLab	oklab(45.28% 0.0154 -0.1905)
OKLCH	oklch(45.28% 0.191 274.6)
XYZ	xyz(12.9401, 8.3318, 49.0605)
Luminance	0.0833 (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

#3D40BD #BDBA3D

analogous

#3D80BD #3D40BD #7A3DBD

triadic

#3D40BD #BD3D40 #40BD3D

tetradic

#3D40BD #BD3D80 #BDBA3D #3DBD7A

square

#3D40BD #BD3D80 #BDBA3D #3DBD7A

split-complementary

#3D40BD #BD7A3D #80BD3D

monochromatic

#1F2160 #2E308F #3D40BD #696BCE #9799DD

Accessibility & contrast

On white

7.88

#3D40BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3D40BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40BD

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40BD	#FFFFFF	#000000	##FFFFFF
##3D40BD	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004CBB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3d40bd;
/* rgb */ color: rgb(61, 64, 189);
/* oklch */ color: oklch(45.3% 0.191 274.6);

Tailwind

colors: {
  custom: {
    50: '#8375d2',
    500: '#3d40bd',
    950: '#000000',
  },
}

SCSS

$custom: #3d40bd;
$custom-light: #8375d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40bd",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 238.594,
    "s": 51.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45276,
    "c": 0.19109,
    "h": 274.6
  },
  "luminance": 0.08333
}

Semantic roles & 50–950 ramp

primary

#3D40BD

secondary

#C9C88D

accent

#D74DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3D40BD

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

Preview Lab → · Contrast checker → · Palette generator →