#3A40AD#3A40AD

#3A40AD is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.171 H 274.4°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#3A40AD
RGB	rgb(58, 64, 173)
HSL	hsl(237, 50%, 45%)
HSV	hsv(237, 66%, 68%)
CMYK	cmyk(66.5%, 63%, 0%, 32.2%)
CIE-LAB	lab(33.10, 32.91, -59.07)
CIE-LCH	lch(33.10, 67.62, 299.12°)
OKLab	oklab(43.66% 0.0131 -0.1703)
OKLCH	oklch(43.66% 0.171 274.4)
XYZ	xyz(11.1186, 7.5825, 40.4047)
Luminance	0.0758 (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

#3A40AD #ADA73A

analogous

#3A79AD #3A40AD #6E3AAD

triadic

#3A40AD #AD3A40 #40AD3A

tetradic

#3A40AD #AD3A79 #ADA73A #3AAD6E

square

#3A40AD #AD3A79 #ADA73A #3AAD6E

split-complementary

#3A40AD #AD6E3A #79AD3A

monochromatic

#1B1E51 #2B2F7F #3A40AD #5C62C8 #8A8ED8

Accessibility & contrast

On white

8.34

#3A40AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3A40AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40AD

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40AD	#FFFFFF	#000000	##FFFFFF
##3A40AD	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B1

Deuteranopia (green-blind)

#0049AB

Tritanopia (blue-blind)

#005C70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3a40ad;
/* rgb */ color: rgb(58, 64, 173);
/* oklch */ color: oklch(43.7% 0.171 274.4);

Tailwind

colors: {
  custom: {
    50: '#7e75c6',
    500: '#3a40ad',
    950: '#000000',
  },
}

SCSS

$custom: #3a40ad;
$custom-light: #7e75c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40ad",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 173
  },
  "hsl": {
    "h": 236.87,
    "s": 49.784,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43656,
    "c": 0.17082,
    "h": 274.4
  },
  "luminance": 0.07583
}

Semantic roles & 50–950 ramp

primary

#3A40AD

secondary

#C2BF81

accent

#D24ED9

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A40AD

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

Preview Lab → · Contrast checker → · Palette generator →