#3A40B6#3A40B6

#3A40B6 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.5% C 0.183 H 273.9°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#3A40B6
RGB	rgb(58, 64, 182)
HSL	hsl(237, 52%, 47%)
HSV	hsv(237, 68%, 71%)
CMYK	cmyk(68.1%, 64.8%, 0%, 28.6%)
CIE-LAB	lab(33.86, 36.04, -63.17)
CIE-LCH	lch(33.86, 72.72, 299.71°)
OKLab	oklab(44.45% 0.0126 -0.1823)
OKLCH	oklch(44.45% 0.183 273.9)
XYZ	xyz(12.0190, 7.9426, 45.1466)
Luminance	0.0794 (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

#3A40B6 #B6B03A

analogous

#3A7EB6 #3A40B6 #723AB6

triadic

#3A40B6 #B63A40 #40B63A

tetradic

#3A40B6 #B63A7E #B6B03A #3AB672

square

#3A40B6 #B63A7E #B6B03A #3AB672

split-complementary

#3A40B6 #B6723A #7EB63A

monochromatic

#1C1F59 #2B3088 #3A40B6 #6166CD #8F93DB

Accessibility & contrast

On white

8.11

#3A40B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3A40B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40B6

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40B6	#FFFFFF	#000000	##FFFFFF
##3A40B6	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BA

Deuteranopia (green-blind)

#004AB4

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3a40b6;
/* rgb */ color: rgb(58, 64, 182);
/* oklch */ color: oklch(44.5% 0.183 273.9);

Tailwind

colors: {
  custom: {
    50: '#8075cd',
    500: '#3a40b6',
    950: '#000000',
  },
}

SCSS

$custom: #3a40b6;
$custom-light: #8075cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40b6",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 182
  },
  "hsl": {
    "h": 237.097,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44453,
    "c": 0.18275,
    "h": 273.9
  },
  "luminance": 0.07944
}

Semantic roles & 50–950 ramp

primary

#3A40B6

secondary

#C6C386

accent

#D44DDB

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3A40B6

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

Preview Lab → · Contrast checker → · Palette generator →