#3F5CD9#3F5CD9

#3F5CD9 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 52.8% C 0.194 H 268.8°. Best body text is #FFFFFF at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#3F5CD9
RGB	rgb(63, 92, 217)
HSL	hsl(229, 67%, 55%)
HSV	hsv(229, 71%, 85%)
CMYK	cmyk(71%, 57.6%, 0%, 14.9%)
CIE-LAB	lab(43.83, 31.35, -67.22)
CIE-LCH	lch(43.83, 74.18, 295.00°)
OKLab	oklab(52.77% -0.004 -0.1938)
OKLCH	oklch(52.77% 0.194 268.8)
XYZ	xyz(18.3971, 13.7189, 67.3106)
Luminance	0.1372 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5CD9 #D9BC3F

analogous

#3FA9D9 #3F5CD9 #6F3FD9

triadic

#3F5CD9 #D93F5C #5CD93F

tetradic

#3F5CD9 #D93FA9 #D9BC3F #3FD96F

square

#3F5CD9 #D93FA9 #D9BC3F #3FD96F

split-complementary

#3F5CD9 #D96F3F #A9D93F

monochromatic

#1A2E84 #2440B7 #3F5CD9 #7287E3 #A5B3ED

Accessibility & contrast

On white

5.61

#3F5CD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#3F5CD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5CD9

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5CD9	#FFFFFF	#000000	##FFFFFF
##3F5CD9	1.00	5.61	3.74	5.61
#FFFFFF	5.61	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDD

Deuteranopia (green-blind)

#0061D7

Tritanopia (blue-blind)

#007B91

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f5cd9;
/* rgb */ color: rgb(63, 92, 217);
/* oklch */ color: oklch(52.8% 0.194 268.8);

Tailwind

colors: {
  custom: {
    50: '#8789e6',
    500: '#3f5cd9',
    950: '#000000',
  },
}

SCSS

$custom: #3f5cd9;
$custom-light: #8789e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5cd9",
  "rgb": {
    "r": 63,
    "g": 92,
    "b": 217
  },
  "hsl": {
    "h": 228.701,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.5277,
    "c": 0.19389,
    "h": 268.8
  },
  "luminance": 0.13721
}

Semantic roles & 50–950 ramp

primary

#3F5CD9

secondary

#DACE9A

accent

#C93EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3F5CD9

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

Preview Lab → · Contrast checker → · Palette generator →