#3A3FB0#3A3FB0

#3A3FB0 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.176 H 274.5°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FB0
RGB	rgb(58, 63, 176)
HSL	hsl(237, 50%, 46%)
HSV	hsv(237, 67%, 69%)
CMYK	cmyk(67%, 64.2%, 0%, 31%)
CIE-LAB	lab(33.11, 34.58, -60.84)
CIE-LCH	lch(33.11, 69.98, 299.62°)
OKLab	oklab(43.74% 0.0138 -0.1755)
OKLCH	oklch(43.74% 0.176 274.5)
XYZ	xyz(11.3563, 7.5881, 41.9321)
Luminance	0.0759 (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

#3A3FB0 #B0AB3A

analogous

#3A7AB0 #3A3FB0 #703AB0

triadic

#3A3FB0 #B03A3F #3FB03A

tetradic

#3A3FB0 #B03A7A #B0AB3A #3AB070

square

#3A3FB0 #B03A7A #B0AB3A #3AB070

split-complementary

#3A3FB0 #B0703A #7AB03A

monochromatic

#1C1E54 #2B2F82 #3A3FB0 #5D62CA #8B8FD9

Accessibility & contrast

On white

8.34

#3A3FB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3A3FB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FB0

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FB0	#FFFFFF	#000000	##FFFFFF
##3A3FB0	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)

#0053B4

Deuteranopia (green-blind)

#0049AE

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3a3fb0;
/* rgb */ color: rgb(58, 63, 176);
/* oklch */ color: oklch(43.7% 0.176 274.5);

Tailwind

colors: {
  custom: {
    50: '#7f74c9',
    500: '#3a3fb0',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fb0;
$custom-light: #7f74c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fb0",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 176
  },
  "hsl": {
    "h": 237.458,
    "s": 50.427,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43743,
    "c": 0.17604,
    "h": 274.5
  },
  "luminance": 0.07589
}

Semantic roles & 50–950 ramp

primary

#3A3FB0

secondary

#C3C182

accent

#D44EDA

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A3FB0

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

Preview Lab → · Contrast checker → · Palette generator →