#3A40A2#3A40A2

#3A40A2 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.156 H 275.0°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3A40A2
RGB	rgb(58, 64, 162)
HSL	hsl(237, 47%, 43%)
HSV	hsv(237, 64%, 64%)
CMYK	cmyk(64.2%, 60.5%, 0%, 36.5%)
CIE-LAB	lab(32.20, 29.05, -53.94)
CIE-LCH	lch(32.20, 61.26, 298.31°)
OKLab	oklab(42.71% 0.0136 -0.1552)
OKLCH	oklch(42.71% 0.156 275)
XYZ	xyz(10.0978, 7.1741, 35.0280)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A40A2 #A29C3A

analogous

#3A74A2 #3A40A2 #683AA2

triadic

#3A40A2 #A23A40 #40A23A

tetradic

#3A40A2 #A23A74 #A29C3A #3AA268

square

#3A40A2 #A23A74 #A29C3A #3AA268

split-complementary

#3A40A2 #A2683A #74A23A

monochromatic

#1A1C48 #2A2E75 #3A40A2 #575DC3 #8488D3

Accessibility & contrast

On white

8.62

#3A40A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#3A40A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40A2

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40A2	#FFFFFF	#000000	##FFFFFF
##3A40A2	1.00	8.62	2.43	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A5

Deuteranopia (green-blind)

#0047A0

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a40a2;
/* rgb */ color: rgb(58, 64, 162);
/* oklch */ color: oklch(42.7% 0.156 275.0);

Tailwind

colors: {
  custom: {
    50: '#7c75be',
    500: '#3a40a2',
    950: '#000000',
  },
}

SCSS

$custom: #3a40a2;
$custom-light: #7c75be;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40a2",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 162
  },
  "hsl": {
    "h": 236.538,
    "s": 47.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42714,
    "c": 0.15582,
    "h": 275
  },
  "luminance": 0.07175
}

Semantic roles & 50–950 ramp

primary

#3A40A2

secondary

#BDB97B

accent

#CF51D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3A40A2

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

Preview Lab → · Contrast checker → · Palette generator →