#4140B2#4140B2

#4140B2 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.176 H 276.9°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#4140B2
RGB	rgb(65, 64, 178)
HSL	hsl(241, 47%, 47%)
HSV	hsv(241, 64%, 70%)
CMYK	cmyk(63.5%, 64%, 0%, 30.2%)
CIE-LAB	lab(33.99, 35.68, -60.57)
CIE-LCH	lch(33.99, 70.29, 300.50°)
OKLab	oklab(44.56% 0.0212 -0.1745)
OKLCH	oklch(44.56% 0.176 276.9)
XYZ	xyz(12.0466, 8.0040, 43.0209)
Luminance	0.0800 (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

#4140B2 #B1B240

analogous

#4078B2 #4140B2 #7A40B2

triadic

#4140B2 #B24140 #40B241

tetradic

#4140B2 #B24078 #B1B240 #40B27A

square

#4140B2 #B24078 #B1B240 #40B27A

split-complementary

#4140B2 #B27A40 #78B240

monochromatic

#202058 #313085 #4140B2 #6867C8 #9594D8

Accessibility & contrast

On white

8.07

#4140B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#4140B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4140B2

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4140B2	#FFFFFF	#000000	##FFFFFF
##4140B2	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B6

Deuteranopia (green-blind)

#004BB0

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4140b2;
/* rgb */ color: rgb(65, 64, 178);
/* oklch */ color: oklch(44.6% 0.176 276.9);

Tailwind

colors: {
  custom: {
    50: '#8275ca',
    500: '#4140b2',
    950: '#000000',
  },
}

SCSS

$custom: #4140b2;
$custom-light: #8275ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4140b2",
  "rgb": {
    "r": 65,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 240.526,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.44564,
    "c": 0.17579,
    "h": 276.9
  },
  "luminance": 0.08005
}

Semantic roles & 50–950 ramp

primary

#4140B2

secondary

#C3C48A

accent

#D751D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4140B2

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

Preview Lab → · Contrast checker → · Palette generator →