#4137B2#4137B2

#4137B2 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.186 H 278.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#4137B2
RGB	rgb(65, 55, 178)
HSL	hsl(245, 53%, 46%)
HSV	hsv(245, 69%, 70%)
CMYK	cmyk(63.5%, 69.1%, 0%, 30.2%)
CIE-LAB	lab(31.96, 41.12, -63.88)
CIE-LCH	lch(31.96, 75.97, 302.77°)
OKLab	oklab(43.1% 0.0284 -0.1842)
OKLCH	oklch(43.1% 0.186 278.8)
XYZ	xyz(11.5795, 7.0696, 42.8652)
Luminance	0.0707 (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

#4137B2 #A8B237

analogous

#376AB2 #4137B2 #7E37B2

triadic

#4137B2 #B24137 #37B241

tetradic

#4137B2 #B2376A #A8B237 #37B27E

square

#4137B2 #B2376A #A8B237 #37B27E

split-complementary

#4137B2 #B27E37 #6AB237

monochromatic

#1F1A54 #302983 #4137B2 #635ACC #9089DB

Accessibility & contrast

On white

8.70

#4137B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4137B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4137B2

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4137B2	#FFFFFF	#000000	##FFFFFF
##4137B2	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0046B0

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4137b2;
/* rgb */ color: rgb(65, 55, 178);
/* oklch */ color: oklch(43.1% 0.186 278.8);

Tailwind

colors: {
  custom: {
    50: '#836fca',
    500: '#4137b2',
    950: '#000000',
  },
}

SCSS

$custom: #4137b2;
$custom-light: #836fca;
$custom-dark: #000000;

JSON

{
  "hex": "#4137b2",
  "rgb": {
    "r": 65,
    "g": 55,
    "b": 178
  },
  "hsl": {
    "h": 244.878,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43095,
    "c": 0.18643,
    "h": 278.8
  },
  "luminance": 0.07071
}

Semantic roles & 50–950 ramp

primary

#4137B2

secondary

#BFC580

accent

#DC4CD0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4137B2

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

Preview Lab → · Contrast checker → · Palette generator →