#3F619D#3F619D

#3F619D is a mid, moderate blue. Relative luminance 0.120; OKLCH L 49.6% C 0.104 H 261.0°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#3F619D
RGB	rgb(63, 97, 157)
HSL	hsl(218, 43%, 43%)
HSV	hsv(218, 60%, 62%)
CMYK	cmyk(59.9%, 38.2%, 0%, 38.4%)
CIE-LAB	lab(41.28, 6.76, -36.34)
CIE-LCH	lch(41.28, 36.97, 280.53°)
OKLab	oklab(49.58% -0.0162 -0.103)
OKLCH	oklch(49.58% 0.104 261)
XYZ	xyz(12.4083, 12.0394, 33.5617)
Luminance	0.1204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F619D #9D7B3F

analogous

#3F909D #3F619D #4C3F9D

triadic

#3F619D #9D3F61 #619D3F

tetradic

#3F619D #9D3F90 #9D7B3F #3F9D4C

square

#3F619D #9D3F90 #9D7B3F #3F9D4C

split-complementary

#3F619D #9D4C3F #909D3F

monochromatic

#1C2B46 #2D4671 #3F619D #5C7FBD #87A1CF

Accessibility & contrast

On white

6.16

#3F619D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3F619D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F619D

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F619D	#FFFFFF	#000000	##FFFFFF
##3F619D	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48669F

Deuteranopia (green-blind)

#3B5D9C

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f619d;
/* rgb */ color: rgb(63, 97, 157);
/* oklch */ color: oklch(49.6% 0.104 261.0);

Tailwind

colors: {
  custom: {
    50: '#7c8dba',
    500: '#3f619d',
    950: '#000000',
  },
}

SCSS

$custom: #3f619d;
$custom-light: #7c8dba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f619d",
  "rgb": {
    "r": 63,
    "g": 97,
    "b": 157
  },
  "hsl": {
    "h": 218.298,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49582,
    "c": 0.10431,
    "h": 261
  },
  "luminance": 0.1204
}

Semantic roles & 50–950 ramp

primary

#3F619D

secondary

#BAA47E

accent

#A555D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #3F619D

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

Preview Lab → · Contrast checker → · Palette generator →