#3D40BE#3D40BE

#3D40BE is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.4% C 0.192 H 274.6°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#3D40BE
RGB	rgb(61, 64, 190)
HSL	hsl(239, 51%, 49%)
HSV	hsv(239, 68%, 75%)
CMYK	cmyk(67.9%, 66.3%, 0%, 25.5%)
CIE-LAB	lab(34.75, 39.18, -66.42)
CIE-LCH	lch(34.75, 77.11, 300.53°)
OKLab	oklab(45.37% 0.0153 -0.1918)
OKLCH	oklch(45.37% 0.192 274.6)
XYZ	xyz(13.0491, 8.3754, 49.6341)
Luminance	0.0838 (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

#3D40BE #BEBB3D

analogous

#3D81BE #3D40BE #7B3DBE

triadic

#3D40BE #BE3D40 #40BE3D

tetradic

#3D40BE #BE3D81 #BEBB3D #3DBE7B

square

#3D40BE #BE3D81 #BEBB3D #3DBE7B

split-complementary

#3D40BE #BE7B3D #81BE3D

monochromatic

#1F2161 #2E3090 #3D40BE #696CCF #9899DE

Accessibility & contrast

On white

7.85

#3D40BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3D40BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40BE

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40BE	#FFFFFF	#000000	##FFFFFF
##3D40BE	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C2

Deuteranopia (green-blind)

#004CBC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3d40be;
/* rgb */ color: rgb(61, 64, 190);
/* oklch */ color: oklch(45.4% 0.192 274.6);

Tailwind

colors: {
  custom: {
    50: '#8375d3',
    500: '#3d40be',
    950: '#000000',
  },
}

SCSS

$custom: #3d40be;
$custom-light: #8375d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40be",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 190
  },
  "hsl": {
    "h": 238.605,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45367,
    "c": 0.19238,
    "h": 274.6
  },
  "luminance": 0.08377
}

Semantic roles & 50–950 ramp

primary

#3D40BE

secondary

#C9C88D

accent

#D84DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3D40BE

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

Preview Lab → · Contrast checker → · Palette generator →