#4140BA#4140BA

#4140BA is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.3% C 0.186 H 276.3°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#4140BA
RGB	rgb(65, 64, 186)
HSL	hsl(240, 49%, 49%)
HSV	hsv(240, 66%, 73%)
CMYK	cmyk(65.1%, 65.6%, 0%, 27.1%)
CIE-LAB	lab(34.67, 38.37, -64.19)
CIE-LCH	lch(34.67, 74.78, 300.87°)
OKLab	oklab(45.27% 0.0205 -0.1851)
OKLCH	oklch(45.27% 0.186 276.3)
XYZ	xyz(12.8734, 8.3347, 47.3752)
Luminance	0.0834 (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

#4140BA #B9BA40

analogous

#407CBA #4140BA #7E40BA

triadic

#4140BA #BA4140 #40BA41

tetradic

#4140BA #BA407C #B9BA40 #40BA7E

square

#4140BA #BA407C #B9BA40 #40BA7E

split-complementary

#4140BA #BA7E40 #7CBA40

monochromatic

#21215F #31308C #4140BA #6C6BCC #9999DC

Accessibility & contrast

On white

7.87

#4140BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#4140BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4140BA

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4140BA	#FFFFFF	#000000	##FFFFFF
##4140BA	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#004CB8

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4140ba;
/* rgb */ color: rgb(65, 64, 186);
/* oklch */ color: oklch(45.3% 0.186 276.3);

Tailwind

colors: {
  custom: {
    50: '#8475d0',
    500: '#4140ba',
    950: '#000000',
  },
}

SCSS

$custom: #4140ba;
$custom-light: #8475d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4140ba",
  "rgb": {
    "r": 65,
    "g": 64,
    "b": 186
  },
  "hsl": {
    "h": 240.492,
    "s": 48.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45269,
    "c": 0.18626,
    "h": 276.3
  },
  "luminance": 0.08336
}

Semantic roles & 50–950 ramp

primary

#4140BA

secondary

#C7C88E

accent

#D84FD7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4140BA

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

Preview Lab → · Contrast checker → · Palette generator →