#4137CC#4137CC

#4137CC is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.6% C 0.218 H 276.3°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#4137CC
RGB	rgb(65, 55, 204)
HSL	hsl(244, 59%, 51%)
HSV	hsv(244, 73%, 80%)
CMYK	cmyk(68.1%, 73%, 0%, 20%)
CIE-LAB	lab(34.43, 49.45, -75.13)
CIE-LCH	lch(34.43, 89.94, 303.36°)
OKLab	oklab(45.6% 0.0239 -0.2171)
OKLCH	oklch(45.6% 0.218 276.3)
XYZ	xyz(14.4417, 8.2145, 57.9395)
Luminance	0.0822 (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

#4137CC #C2CC37

analogous

#3777CC #4137CC #8B37CC

triadic

#4137CC #CC4137 #37CC41

tetradic

#4137CC #CC3777 #C2CC37 #37CC8B

square

#4137CC #CC3777 #C2CC37 #37CC8B

split-complementary

#4137CC #CC8B37 #77CC37

monochromatic

#211C6D #30289E #4137CC #6F68D8 #9E99E5

Accessibility & contrast

On white

7.94

#4137CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#4137CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4137CC

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4137CC	#FFFFFF	#000000	##FFFFFF
##4137CC	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D0

Deuteranopia (green-blind)

#004AC9

Tritanopia (blue-blind)

#00617E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4137cc;
/* rgb */ color: rgb(65, 55, 204);
/* oklch */ color: oklch(45.6% 0.218 276.3);

Tailwind

colors: {
  custom: {
    50: '#8870dd',
    500: '#4137cc',
    950: '#000000',
  },
}

SCSS

$custom: #4137cc;
$custom-light: #8870dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4137cc",
  "rgb": {
    "r": 65,
    "g": 55,
    "b": 204
  },
  "hsl": {
    "h": 244.027,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45598,
    "c": 0.21842,
    "h": 276.3
  },
  "luminance": 0.08216
}

Semantic roles & 50–950 ramp

primary

#4137CC

secondary

#CCD08E

accent

#E345D8

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4137CC

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

Preview Lab → · Contrast checker → · Palette generator →