#3A40C6#3A40C6

#3A40C6 is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 45.9% C 0.203 H 273.1°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#3A40C6
RGB	rgb(58, 64, 198)
HSL	hsl(237, 55%, 50%)
HSV	hsv(237, 71%, 78%)
CMYK	cmyk(70.7%, 67.7%, 0%, 22.4%)
CIE-LAB	lab(35.29, 41.53, -70.23)
CIE-LCH	lch(35.29, 81.59, 300.60°)
OKLab	oklab(45.92% 0.0111 -0.203)
OKLCH	oklch(45.92% 0.203 273.1)
XYZ	xyz(13.7679, 8.6422, 54.3577)
Luminance	0.0864 (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

#3A40C6 #C6C03A

analogous

#3A86C6 #3A40C6 #7A3AC6

triadic

#3A40C6 #C63A40 #40C63A

tetradic

#3A40C6 #C63A86 #C6C03A #3AC67A

square

#3A40C6 #C63A86 #C6C03A #3AC67A

split-complementary

#3A40C6 #C67A3A #86C63A

monochromatic

#1E2168 #2C3097 #3A40C6 #696ED4 #999CE1

Accessibility & contrast

On white

7.70

#3A40C6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3A40C6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40C6

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40C6	#FFFFFF	#000000	##FFFFFF
##3A40C6	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACA

Deuteranopia (green-blind)

#004CC3

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3a40c6;
/* rgb */ color: rgb(58, 64, 198);
/* oklch */ color: oklch(45.9% 0.203 273.1);

Tailwind

colors: {
  custom: {
    50: '#8475d8',
    500: '#3a40c6',
    950: '#000000',
  },
}

SCSS

$custom: #3a40c6;
$custom-light: #8475d8;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40c6",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 198
  },
  "hsl": {
    "h": 237.429,
    "s": 55.118,
    "l": 50.196
  },
  "oklch": {
    "l": 0.45924,
    "c": 0.20331,
    "h": 273.1
  },
  "luminance": 0.08644
}

Semantic roles & 50–950 ramp

primary

#3A40C6

secondary

#CDCB8F

accent

#D849DE

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3A40C6

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

Preview Lab → · Contrast checker → · Palette generator →