#3A40C7#3A40C7

#3A40C7 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.0% C 0.205 H 273.1°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#3A40C7
RGB	rgb(58, 64, 199)
HSL	hsl(237, 56%, 50%)
HSV	hsv(237, 71%, 78%)
CMYK	cmyk(70.9%, 67.8%, 0%, 22%)
CIE-LAB	lab(35.38, 41.87, -70.67)
CIE-LCH	lch(35.38, 82.14, 300.65°)
OKLab	oklab(46.02% 0.011 -0.2043)
OKLCH	oklch(46.02% 0.205 273.1)
XYZ	xyz(13.8837, 8.6885, 54.9671)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.31

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A40C7 #C7C13A

analogous

#3A86C7 #3A40C7 #7B3AC7

triadic

#3A40C7 #C73A40 #40C73A

tetradic

#3A40C7 #C73A86 #C7C13A #3AC77B

square

#3A40C7 #C73A86 #C7C13A #3AC77B

split-complementary

#3A40C7 #C77B3A #86C73A

monochromatic

#1E2169 #2B3098 #3A40C7 #6A6ED5 #999CE2

Accessibility & contrast

On white

7.67

#3A40C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3A40C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40C7

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40C7	#FFFFFF	#000000	##FFFFFF
##3A40C7	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACB

Deuteranopia (green-blind)

#004DC4

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3a40c7;
/* rgb */ color: rgb(58, 64, 199);
/* oklch */ color: oklch(46.0% 0.205 273.1);

Tailwind

colors: {
  custom: {
    50: '#8475d9',
    500: '#3a40c7',
    950: '#000000',
  },
}

SCSS

$custom: #3a40c7;
$custom-light: #8475d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40c7",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 199
  },
  "hsl": {
    "h": 237.447,
    "s": 55.731,
    "l": 50.392
  },
  "oklch": {
    "l": 0.46018,
    "c": 0.20457,
    "h": 273.1
  },
  "luminance": 0.0869
}

Semantic roles & 50–950 ramp

primary

#3A40C7

secondary

#CECB8F

accent

#D949DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3A40C7

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

Preview Lab → · Contrast checker → · Palette generator →