#4137BA#4137BA

#4137BA is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.8% C 0.196 H 277.9°. Best body text is #FFFFFF at 8.47:1 contrast (WCAG AA passes).

Color values

HEX	#4137BA
RGB	rgb(65, 55, 186)
HSL	hsl(245, 54%, 47%)
HSV	hsv(245, 70%, 73%)
CMYK	cmyk(65.1%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(32.70, 43.71, -67.42)
CIE-LCH	lch(32.70, 80.35, 302.96°)
OKLab	oklab(43.85% 0.0271 -0.1946)
OKLCH	oklch(43.85% 0.196 277.9)
XYZ	xyz(12.4062, 7.4003, 47.2195)
Luminance	0.0740 (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

#4137BA #B0BA37

analogous

#376FBA #4137BA #8237BA

triadic

#4137BA #BA4137 #37BA41

tetradic

#4137BA #BA376F #B0BA37 #37BA82

square

#4137BA #BA376F #B0BA37 #37BA82

split-complementary

#4137BA #BA8237 #6FBA37

monochromatic

#201B5C #30298B #4137BA #675FD0 #948EDE

Accessibility & contrast

On white

8.47

#4137BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#4137BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4137BA

8.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4137BA	#FFFFFF	#000000	##FFFFFF
##4137BA	1.00	8.47	2.48	8.47
#FFFFFF	8.47	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BE

Deuteranopia (green-blind)

#0047B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4137ba;
/* rgb */ color: rgb(65, 55, 186);
/* oklch */ color: oklch(43.8% 0.196 277.9);

Tailwind

colors: {
  custom: {
    50: '#856fd0',
    500: '#4137ba',
    950: '#000000',
  },
}

SCSS

$custom: #4137ba;
$custom-light: #856fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4137ba",
  "rgb": {
    "r": 65,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 244.58,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43848,
    "c": 0.19647,
    "h": 277.9
  },
  "luminance": 0.07401
}

Semantic roles & 50–950 ramp

primary

#4137BA

secondary

#C3C885

accent

#DE4AD2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4137BA

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

Preview Lab → · Contrast checker → · Palette generator →