#3F27B9#3F27B9

#3F27B9 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.5% C 0.211 H 279.4°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#3F27B9
RGB	rgb(63, 39, 185)
HSL	hsl(250, 65%, 44%)
HSV	hsv(250, 79%, 73%)
CMYK	cmyk(65.9%, 78.9%, 0%, 27.5%)
CIE-LAB	lab(29.44, 51.66, -72.21)
CIE-LCH	lch(29.44, 88.79, 305.58°)
OKLab	oklab(41.47% 0.0344 -0.2085)
OKLCH	oklch(41.47% 0.211 279.4)
XYZ	xyz(11.5296, 6.0096, 46.4419)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F27B9 #A1B927

analogous

#2758B9 #3F27B9 #8827B9

triadic

#3F27B9 #B93F27 #27B93F

tetradic

#3F27B9 #B92758 #A1B927 #27B988

square

#3F27B9 #B92758 #A1B927 #27B988

split-complementary

#3F27B9 #B98827 #58B927

monochromatic

#1D1254 #2E1C86 #3F27B9 #5D45D8 #8978E3

Accessibility & contrast

On white

9.54

#3F27B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#3F27B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F27B9

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F27B9	#FFFFFF	#000000	##FFFFFF
##3F27B9	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BBD

Deuteranopia (green-blind)

#0040B6

Tritanopia (blue-blind)

#005370

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f27b9;
/* rgb */ color: rgb(63, 39, 185);
/* oklch */ color: oklch(41.5% 0.211 279.4);

Tailwind

colors: {
  custom: {
    50: '#8566cf',
    500: '#3f27b9',
    950: '#000000',
  },
}

SCSS

$custom: #3f27b9;
$custom-light: #8566cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f27b9",
  "rgb": {
    "r": 63,
    "g": 39,
    "b": 185
  },
  "hsl": {
    "h": 249.863,
    "s": 65.179,
    "l": 43.922
  },
  "oklch": {
    "l": 0.41472,
    "c": 0.21132,
    "h": 279.4
  },
  "luminance": 0.06011
}

Semantic roles & 50–950 ramp

primary

#3F27B9

secondary

#BCCA72

accent

#E840CC

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0D0614

muted

#7D7A82

Preview Lab

Preview with #3F27B9

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

Preview Lab → · Contrast checker → · Palette generator →