#4148D9#4148D9

#4148D9 is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 49.4% C 0.217 H 273.1°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#4148D9
RGB	rgb(65, 72, 217)
HSL	hsl(237, 67%, 55%)
HSV	hsv(237, 70%, 85%)
CMYK	cmyk(70%, 66.8%, 0%, 14.9%)
CIE-LAB	lab(39.18, 43.95, -74.81)
CIE-LCH	lch(39.18, 86.76, 300.43°)
OKLab	oklab(49.38% 0.0118 -0.2162)
OKLCH	oklch(49.38% 0.217 273.1)
XYZ	xyz(17.0175, 10.7666, 66.8135)
Luminance	0.1077 (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

#4148D9 #D9D241

analogous

#4194D9 #4148D9 #8641D9

triadic

#4148D9 #D94148 #48D941

tetradic

#4148D9 #D94194 #D9D241 #41D986

square

#4148D9 #D94194 #D9D241 #41D986

split-complementary

#4148D9 #D98641 #94D941

monochromatic

#1B1F85 #252CB8 #4148D9 #7479E3 #A7AAED

Accessibility & contrast

On white

6.66

#4148D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#4148D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4148D9

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4148D9	#FFFFFF	#000000	##FFFFFF
##4148D9	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063DD

Deuteranopia (green-blind)

#0055D6

Tritanopia (blue-blind)

#006F8A

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4148d9;
/* rgb */ color: rgb(65, 72, 217);
/* oklch */ color: oklch(49.4% 0.217 273.1);

Tailwind

colors: {
  custom: {
    50: '#8a7be6',
    500: '#4148d9',
    950: '#000000',
  },
}

SCSS

$custom: #4148d9;
$custom-light: #8a7be6;
$custom-dark: #000000;

JSON

{
  "hex": "#4148d9",
  "rgb": {
    "r": 65,
    "g": 72,
    "b": 217
  },
  "hsl": {
    "h": 237.237,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.4938,
    "c": 0.21652,
    "h": 273.1
  },
  "luminance": 0.10768
}

Semantic roles & 50–950 ramp

primary

#4148D9

secondary

#DBD89B

accent

#E23EEA

background

#F9F7FE

surface

#F2EEFC

border

#CCC9D5

text

#0D0916

muted

#7E7B84

Preview Lab

Preview with #4148D9

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

Preview Lab → · Contrast checker → · Palette generator →