#3A3F90#3A3F90

#3A3F90 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.1% C 0.132 H 276.3°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#3A3F90
RGB	rgb(58, 63, 144)
HSL	hsl(237, 43%, 40%)
HSV	hsv(237, 60%, 56%)
CMYK	cmyk(59.7%, 56.3%, 0%, 43.5%)
CIE-LAB	lab(30.56, 23.37, -45.65)
CIE-LCH	lch(30.56, 51.28, 297.12°)
OKLab	oklab(41.06% 0.0144 -0.1308)
OKLCH	oklch(41.06% 0.132 276.3)
XYZ	xyz(8.5548, 6.4675, 27.1777)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A3F90 #908B3A

analogous

#3A6A90 #3A3F90 #603A90

triadic

#3A3F90 #903A3F #3F903A

tetradic

#3A3F90 #903A6A #908B3A #3A9060

square

#3A3F90 #903A6A #908B3A #3A9060

split-complementary

#3A3F90 #90603A #6A903A

monochromatic

#171939 #282C64 #3A3F90 #4F55B8 #7B7FCA

Accessibility & contrast

On white

9.16

#3A3F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3A3F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A3F90

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A3F90	#FFFFFF	#000000	##FFFFFF
##3A3F90	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#054C93

Deuteranopia (green-blind)

#00448E

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3a3f90;
/* rgb */ color: rgb(58, 63, 144);
/* oklch */ color: oklch(41.1% 0.132 276.3);

Tailwind

colors: {
  custom: {
    50: '#7974b1',
    500: '#3a3f90',
    950: '#000000',
  },
}

SCSS

$custom: #3a3f90;
$custom-light: #7974b1;
$custom-dark: #000000;

JSON

{
  "hex": "#3a3f90",
  "rgb": {
    "r": 58,
    "g": 63,
    "b": 144
  },
  "hsl": {
    "h": 236.512,
    "s": 42.574,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41063,
    "c": 0.13164,
    "h": 276.3
  },
  "luminance": 0.06468
}

Semantic roles & 50–950 ramp

primary

#3A3F90

secondary

#B3AF73

accent

#CB55D2

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3A3F90

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

Preview Lab → · Contrast checker → · Palette generator →