#3F27BC#3F27BC

#3F27BC is a dark, highly saturated blue. Relative luminance 0.061; OKLCH L 41.8% C 0.215 H 279.0°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#3F27BC
RGB	rgb(63, 39, 188)
HSL	hsl(250, 66%, 45%)
HSV	hsv(250, 79%, 74%)
CMYK	cmyk(66.5%, 79.3%, 0%, 26.3%)
CIE-LAB	lab(29.76, 52.55, -73.46)
CIE-LCH	lch(29.76, 90.32, 305.58°)
OKLab	oklab(41.79% 0.0335 -0.2121)
OKLCH	oklch(41.79% 0.215 279)
XYZ	xyz(11.8496, 6.1376, 48.1274)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F27BC #A4BC27

analogous

#275ABC #3F27BC #8927BC

triadic

#3F27BC #BC3F27 #27BC3F

tetradic

#3F27BC #BC275A #A4BC27 #27BC89

square

#3F27BC #BC275A #A4BC27 #27BC89

split-complementary

#3F27BC #BC8927 #5ABC27

monochromatic

#1D1257 #2E1C89 #3F27BC #5F47D9 #8B7AE3

Accessibility & contrast

On white

9.43

#3F27BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3F27BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F27BC

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F27BC	#FFFFFF	#000000	##FFFFFF
##3F27BC	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CC0

Deuteranopia (green-blind)

#0040B9

Tritanopia (blue-blind)

#005472

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3f27bc;
/* rgb */ color: rgb(63, 39, 188);
/* oklch */ color: oklch(41.8% 0.215 279.0);

Tailwind

colors: {
  custom: {
    50: '#8666d2',
    500: '#3f27bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f27bc;
$custom-light: #8666d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f27bc",
  "rgb": {
    "r": 63,
    "g": 39,
    "b": 188
  },
  "hsl": {
    "h": 249.664,
    "s": 65.639,
    "l": 44.51
  },
  "oklch": {
    "l": 0.4179,
    "c": 0.21477,
    "h": 279
  },
  "luminance": 0.06139
}

Semantic roles & 50–950 ramp

primary

#3F27BC

secondary

#BDCB73

accent

#E93FCD

background

#F9F6FD

surface

#F1EBFA

border

#CBC6D3

text

#0D0614

muted

#7E7A83

Preview Lab

Preview with #3F27BC

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

Preview Lab → · Contrast checker → · Palette generator →