#3A40AF#3A40AF

#3A40AF is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.8% C 0.173 H 274.3°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#3A40AF
RGB	rgb(58, 64, 175)
HSL	hsl(237, 50%, 46%)
HSV	hsv(237, 67%, 69%)
CMYK	cmyk(66.9%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(33.27, 33.60, -59.99)
CIE-LCH	lch(33.27, 68.76, 299.26°)
OKLab	oklab(43.83% 0.013 -0.173)
OKLCH	oklch(43.83% 0.173 274.3)
XYZ	xyz(11.3136, 7.6605, 41.4315)
Luminance	0.0766 (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

#3A40AF #AFA93A

analogous

#3A7AAF #3A40AF #6E3AAF

triadic

#3A40AF #AF3A40 #40AF3A

tetradic

#3A40AF #AF3A7A #AFA93A #3AAF6E

square

#3A40AF #AF3A7A #AFA93A #3AAF6E

split-complementary

#3A40AF #AF6E3A #7AAF3A

monochromatic

#1C1E53 #2B2F81 #3A40AF #5D62C9 #8B8FD9

Accessibility & contrast

On white

8.29

#3A40AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#3A40AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A40AF

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A40AF	#FFFFFF	#000000	##FFFFFF
##3A40AF	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B3

Deuteranopia (green-blind)

#0049AD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3a40af;
/* rgb */ color: rgb(58, 64, 175);
/* oklch */ color: oklch(43.8% 0.173 274.3);

Tailwind

colors: {
  custom: {
    50: '#7f75c8',
    500: '#3a40af',
    950: '#000000',
  },
}

SCSS

$custom: #3a40af;
$custom-light: #7f75c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3a40af",
  "rgb": {
    "r": 58,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 236.923,
    "s": 50.215,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43831,
    "c": 0.17349,
    "h": 274.3
  },
  "luminance": 0.07661
}

Semantic roles & 50–950 ramp

primary

#3A40AF

secondary

#C3C082

accent

#D34EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A40AF

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

Preview Lab → · Contrast checker → · Palette generator →