#4143D7#4143D7

#4143D7 is a mid, highly saturated blue. Relative luminance 0.100; OKLCH L 48.4% C 0.219 H 274.0°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#4143D7
RGB	rgb(65, 67, 215)
HSL	hsl(239, 65%, 55%)
HSV	hsv(239, 70%, 84%)
CMYK	cmyk(69.8%, 68.8%, 0%, 15.7%)
CIE-LAB	lab(37.92, 46.22, -75.74)
CIE-LCH	lch(37.92, 88.73, 301.40°)
OKLab	oklab(48.41% 0.0151 -0.2189)
OKLCH	oklch(48.41% 0.219 274)
XYZ	xyz(16.4488, 10.0428, 65.3484)
Luminance	0.1004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.28

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4143D7 #D7D541

analogous

#418ED7 #4143D7 #8A41D7

triadic

#4143D7 #D74143 #43D741

tetradic

#4143D7 #D7418E #D7D541 #41D78A

square

#4143D7 #D7418E #D7D541 #41D78A

split-complementary

#4143D7 #D78A41 #8ED741

monochromatic

#1B1D82 #2628B5 #4143D7 #7475E2 #A6A7EC

Accessibility & contrast

On white

6.98

#4143D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#4143D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4143D7

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4143D7	#FFFFFF	#000000	##FFFFFF
##4143D7	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DB

Deuteranopia (green-blind)

#0052D4

Tritanopia (blue-blind)

#006B88

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #4143d7;
/* rgb */ color: rgb(65, 67, 215);
/* oklch */ color: oklch(48.4% 0.219 274.0);

Tailwind

colors: {
  custom: {
    50: '#8a78e5',
    500: '#4143d7',
    950: '#000000',
  },
}

SCSS

$custom: #4143d7;
$custom-light: #8a78e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4143d7",
  "rgb": {
    "r": 65,
    "g": 67,
    "b": 215
  },
  "hsl": {
    "h": 239.2,
    "s": 65.217,
    "l": 54.902
  },
  "oklch": {
    "l": 0.48411,
    "c": 0.21945,
    "h": 274
  },
  "luminance": 0.10044
}

Semantic roles & 50–950 ramp

primary

#4143D7

secondary

#D9D99A

accent

#E640E8

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4143D7

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

Preview Lab → · Contrast checker → · Palette generator →