#3851BC#3851BC

#3851BC is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.0% C 0.171 H 269.0°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#3851BC
RGB	rgb(56, 81, 188)
HSL	hsl(229, 54%, 48%)
HSV	hsv(229, 70%, 74%)
CMYK	cmyk(70.2%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.47, 27.03, -59.19)
CIE-LCH	lch(38.47, 65.07, 294.54°)
OKLab	oklab(47.99% -0.0028 -0.1705)
OKLCH	oklch(47.99% 0.171 269)
XYZ	xyz(13.6473, 10.3551, 48.8467)
Luminance	0.1036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3851BC #BCA338

analogous

#3893BC #3851BC #6138BC

triadic

#3851BC #BC3851 #51BC38

tetradic

#3851BC #BC3893 #BCA338 #38BC61

square

#3851BC #BC3893 #BCA338 #38BC61

split-complementary

#3851BC #BC6138 #93BC38

monochromatic

#1C285E #2A3D8D #3851BC #6176D0 #909FDE

Accessibility & contrast

On white

6.84

#3851BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3851BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3851BC

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3851BC	#FFFFFF	#000000	##FFFFFF
##3851BC	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0055BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3851bc;
/* rgb */ color: rgb(56, 81, 188);
/* oklch */ color: oklch(48.0% 0.171 269.0);

Tailwind

colors: {
  custom: {
    50: '#7f81d1',
    500: '#3851bc',
    950: '#000000',
  },
}

SCSS

$custom: #3851bc;
$custom-light: #7f81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3851bc",
  "rgb": {
    "r": 56,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 228.636,
    "s": 54.098,
    "l": 47.843
  },
  "oklch": {
    "l": 0.47985,
    "c": 0.17054,
    "h": 269
  },
  "luminance": 0.10356
}

Semantic roles & 50–950 ramp

primary

#3851BC

secondary

#C9BC87

accent

#C24ADD

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3851BC

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

Preview Lab → · Contrast checker → · Palette generator →