#3827B3#3827B3

#3827B3 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.3% C 0.206 H 277.3°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#3827B3
RGB	rgb(56, 39, 179)
HSL	hsl(247, 64%, 43%)
HSV	hsv(247, 78%, 70%)
CMYK	cmyk(68.7%, 78.2%, 0%, 29.8%)
CIE-LAB	lab(28.24, 49.17, -70.64)
CIE-LCH	lch(28.24, 86.07, 304.84°)
OKLab	oklab(40.3% 0.0261 -0.2041)
OKLCH	oklch(40.3% 0.206 277.3)
XYZ	xyz(10.4904, 5.5455, 43.1566)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3827B3 #A2B327

analogous

#275CB3 #3827B3 #7E27B3

triadic

#3827B3 #B33827 #27B338

tetradic

#3827B3 #B3275C #A2B327 #27B37E

square

#3827B3 #B3275C #A2B327 #27B37E

split-complementary

#3827B3 #B37E27 #5CB327

monochromatic

#19114E #281C81 #3827B3 #5341D6 #8174E1

Accessibility & contrast

On white

9.96

#3827B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#3827B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3827B3

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3827B3	#FFFFFF	#000000	##FFFFFF
##3827B3	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B7

Deuteranopia (green-blind)

#003DB1

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #3827b3;
/* rgb */ color: rgb(56, 39, 179);
/* oklch */ color: oklch(40.3% 0.206 277.3);

Tailwind

colors: {
  custom: {
    50: '#8165cb',
    500: '#3827b3',
    950: '#000000',
  },
}

SCSS

$custom: #3827b3;
$custom-light: #8165cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3827b3",
  "rgb": {
    "r": 56,
    "g": 39,
    "b": 179
  },
  "hsl": {
    "h": 247.286,
    "s": 64.22,
    "l": 42.745
  },
  "oklch": {
    "l": 0.40303,
    "c": 0.20579,
    "h": 277.3
  },
  "luminance": 0.05546
}

Semantic roles & 50–950 ramp

primary

#3827B3

secondary

#BDC86E

accent

#E741D3

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0613

muted

#7D7A82

Preview Lab

Preview with #3827B3

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

Preview Lab → · Contrast checker → · Palette generator →