#3A3FA8#3A3FA8

#3A3FA8 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.0% C 0.165 H 274.9°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3A3FA8
RGB	rgb(58, 63, 168)
HSL	hsl(237, 49%, 44%)
HSV	hsv(237, 65%, 66%)
CMYK	cmyk(65.5%, 62.5%, 0%, 34.1%)
CIE-LAB	lab(32.44, 31.80, -57.16)
CIE-LCH	lch(32.44, 65.41, 299.09°)
OKLab	oklab(43.04% 0.0142 -0.1647)
OKLCH	oklch(43.04% 0.165 274.9)
XYZ	xyz(10.5880, 7.2808, 37.8856)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.91

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3FA8 #A8A33A

analogous

#3A76A8 #3A3FA8 #6C3AA8

triadic

#3A3FA8 #A83A3F #3FA83A

tetradic

#3A3FA8 #A83A76 #A8A33A #3AA86C

square

#3A3FA8 #A83A76 #A8A33A #3AA86C

split-complementary

#3A3FA8 #A86C3A #76A83A

monochromatic

#1B1D4D #2A2E7B #3A3FA8 #595EC6 #878AD6

Accessibility & contrast

On white

8.55

#3A3FA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3A3FA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3FA8

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3FA8	#FFFFFF	#000000	##FFFFFF
##3A3FA8	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AB

Deuteranopia (green-blind)

#0047A6

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3a3fa8;
/* rgb */ color: rgb(58, 63, 168);
/* oklch */ color: oklch(43.0% 0.165 274.9);

Tailwind

colors: {
  custom: {
    50: '#7d74c3',
    500: '#3a3fa8',
    950: '#000000',
  },
}

SCSS

$custom: #3a3fa8;
$custom-light: #7d74c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3fa8",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 168
  },
  "hsl": {
    "h": 237.273,
    "s": 48.673,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43042,
    "c": 0.16531,
    "h": 274.9
  },
  "luminance": 0.07282
}

Semantic roles & 50–950 ramp

primary

#3A3FA8

secondary

#C0BD7E

accent

#D250D8

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3A3FA8

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

Preview Lab → · Contrast checker → · Palette generator →