#4137BC#4137BC

#4137BC is a dark, vivid blue. Relative luminance 0.075; OKLCH L 44.0% C 0.199 H 277.7°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#4137BC
RGB	rgb(65, 55, 188)
HSL	hsl(245, 55%, 48%)
HSV	hsv(245, 71%, 74%)
CMYK	cmyk(65.4%, 70.7%, 0%, 26.3%)
CIE-LAB	lab(32.89, 44.36, -68.29)
CIE-LCH	lch(32.89, 81.43, 303.00°)
OKLab	oklab(44.04% 0.0268 -0.1971)
OKLCH	oklch(44.04% 0.199 277.7)
XYZ	xyz(12.6203, 7.4860, 48.3471)
Luminance	0.0749 (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

#4137BC #B2BC37

analogous

#3770BC #4137BC #8337BC

triadic

#4137BC #BC4137 #37BC41

tetradic

#4137BC #BC3770 #B2BC37 #37BC83

square

#4137BC #BC3770 #B2BC37 #37BC83

split-complementary

#4137BC #BC8337 #70BC37

monochromatic

#201B5D #31298D #4137BC #6860D0 #958FDE

Accessibility & contrast

On white

8.41

#4137BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#4137BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4137BC

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4137BC	#FFFFFF	#000000	##FFFFFF
##4137BC	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C0

Deuteranopia (green-blind)

#0048BA

Tritanopia (blue-blind)

#005B75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4137bc;
/* rgb */ color: rgb(65, 55, 188);
/* oklch */ color: oklch(44.0% 0.199 277.7);

Tailwind

colors: {
  custom: {
    50: '#856fd1',
    500: '#4137bc',
    950: '#000000',
  },
}

SCSS

$custom: #4137bc;
$custom-light: #856fd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4137bc",
  "rgb": {
    "r": 65,
    "g": 55,
    "b": 188
  },
  "hsl": {
    "h": 244.511,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44039,
    "c": 0.19895,
    "h": 277.7
  },
  "luminance": 0.07487
}

Semantic roles & 50–950 ramp

primary

#4137BC

secondary

#C4C986

accent

#DE4AD3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #4137BC

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

Preview Lab → · Contrast checker → · Palette generator →