#3A40BE#3A40BE

#3A40BE is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.193 H 273.5°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3A40BE
RGB	rgb(58, 64, 190)
HSL	hsl(237, 53%, 49%)
HSV	hsv(237, 69%, 75%)
CMYK	cmyk(69.5%, 66.3%, 0%, 25.5%)
CIE-LAB	lab(34.56, 38.80, -66.73)
CIE-LCH	lch(34.56, 77.19, 300.17°)
OKLab	oklab(45.18% 0.0119 -0.1928)
OKLCH	oklch(45.18% 0.193 273.5)
XYZ	xyz(12.8695, 8.2828, 49.6257)
Luminance	0.0828 (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

#3A40BE #BEB83A

analogous

#3A82BE #3A40BE #763ABE

triadic

#3A40BE #BE3A40 #40BE3A

tetradic

#3A40BE #BE3A82 #BEB83A #3ABE76

square

#3A40BE #BE3A82 #BEB83A #3ABE76

split-complementary

#3A40BE #BE763A #82BE3A

monochromatic

#1D2060 #2C308F #3A40BE #656AD0 #9497DE

Accessibility & contrast

On white

7.90

#3A40BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3A40BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40BE

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40BE	#FFFFFF	#000000	##FFFFFF
##3A40BE	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3a40be;
/* rgb */ color: rgb(58, 64, 190);
/* oklch */ color: oklch(45.2% 0.193 273.5);

Tailwind

colors: {
  custom: {
    50: '#8275d3',
    500: '#3a40be',
    950: '#000000',
  },
}

SCSS

$custom: #3a40be;
$custom-light: #8275d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40be",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 190
  },
  "hsl": {
    "h": 237.273,
    "s": 53.226,
    "l": 48.627
  },
  "oklch": {
    "l": 0.45181,
    "c": 0.19314,
    "h": 273.5
  },
  "luminance": 0.08284
}

Semantic roles & 50–950 ramp

primary

#3A40BE

secondary

#CAC78A

accent

#D64BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3A40BE

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

Preview Lab → · Contrast checker → · Palette generator →