#3A40C8#3A40C8

#3A40C8 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.1% C 0.206 H 273.0°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#3A40C8
RGB	rgb(58, 64, 200)
HSL	hsl(237, 56%, 51%)
HSV	hsv(237, 71%, 78%)
CMYK	cmyk(71%, 68%, 0%, 21.6%)
CIE-LAB	lab(35.47, 42.21, -71.10)
CIE-LCH	lch(35.47, 82.69, 300.70°)
OKLab	oklab(46.11% 0.0108 -0.2055)
OKLCH	oklch(46.11% 0.206 273)
XYZ	xyz(14.0002, 8.7351, 55.5806)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A40C8 #C8C23A

analogous

#3A87C8 #3A40C8 #7B3AC8

triadic

#3A40C8 #C83A40 #40C83A

tetradic

#3A40C8 #C83A87 #C8C23A #3AC87B

square

#3A40C8 #C83A87 #C8C23A #3AC87B

split-complementary

#3A40C8 #C87B3A #87C83A

monochromatic

#1E216A #2B309A #3A40C8 #6A6ED5 #9A9DE3

Accessibility & contrast

On white

7.64

#3A40C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3A40C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40C8

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40C8	#FFFFFF	#000000	##FFFFFF
##3A40C8	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACC

Deuteranopia (green-blind)

#004DC5

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3a40c8;
/* rgb */ color: rgb(58, 64, 200);
/* oklch */ color: oklch(46.1% 0.206 273.0);

Tailwind

colors: {
  custom: {
    50: '#8475da',
    500: '#3a40c8',
    950: '#000000',
  },
}

SCSS

$custom: #3a40c8;
$custom-light: #8475da;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40c8",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 200
  },
  "hsl": {
    "h": 237.465,
    "s": 56.349,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46113,
    "c": 0.20583,
    "h": 273
  },
  "luminance": 0.08736
}

Semantic roles & 50–950 ramp

primary

#3A40C8

secondary

#CECC8F

accent

#D948E0

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3A40C8

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

Preview Lab → · Contrast checker → · Palette generator →