#3837B6#3837B6

#3837B6 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.194 H 274.9°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#3837B6
RGB	rgb(56, 55, 182)
HSL	hsl(240, 54%, 46%)
HSV	hsv(240, 70%, 71%)
CMYK	cmyk(69.2%, 69.8%, 0%, 28.6%)
CIE-LAB	lab(31.69, 41.29, -66.73)
CIE-LCH	lch(31.69, 78.47, 301.74°)
OKLab	oklab(42.85% 0.0164 -0.1928)
OKLCH	oklch(42.85% 0.194 274.9)
XYZ	xyz(11.4378, 6.9495, 44.9855)
Luminance	0.0695 (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

#3837B6 #B5B637

analogous

#3776B6 #3837B6 #7837B6

triadic

#3837B6 #B63837 #37B638

tetradic

#3837B6 #B63776 #B5B637 #37B678

square

#3837B6 #B63776 #B5B637 #37B678

split-complementary

#3837B6 #B67837 #76B637

monochromatic

#1B1B58 #2A2987 #3837B6 #5D5CCE #8C8BDC

Accessibility & contrast

On white

8.79

#3837B6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3837B6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3837B6

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3837B6	#FFFFFF	#000000	##FFFFFF
##3837B6	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BA

Deuteranopia (green-blind)

#0045B4

Tritanopia (blue-blind)

#005A72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3837b6;
/* rgb */ color: rgb(56, 55, 182);
/* oklch */ color: oklch(42.8% 0.194 274.9);

Tailwind

colors: {
  custom: {
    50: '#806fcd',
    500: '#3837b6',
    950: '#000000',
  },
}

SCSS

$custom: #3837b6;
$custom-light: #806fcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3837b6",
  "rgb": {
    "r": 56,
    "g": 55,
    "b": 182
  },
  "hsl": {
    "h": 240.472,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.42845,
    "c": 0.19353,
    "h": 274.9
  },
  "luminance": 0.06951
}

Semantic roles & 50–950 ramp

primary

#3837B6

secondary

#C6C682

accent

#DD4BDC

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3837B6

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

Preview Lab → · Contrast checker → · Palette generator →