#3F5DA4#3F5DA4

#3F5DA4 is a mid, moderate blue. Relative luminance 0.116; OKLCH L 49.1% C 0.119 H 265.1°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DA4
RGB	rgb(63, 93, 164)
HSL	hsl(222, 44%, 45%)
HSV	hsv(222, 62%, 64%)
CMYK	cmyk(61.6%, 43.3%, 0%, 35.7%)
CIE-LAB	lab(40.52, 11.77, -41.72)
CIE-LCH	lch(40.52, 43.35, 285.75°)
OKLab	oklab(49.12% -0.0102 -0.1188)
OKLCH	oklch(49.12% 0.119 265.1)
XYZ	xyz(12.6628, 11.5647, 36.6797)
Luminance	0.1157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DA4 #A4863F

analogous

#3F90A4 #3F5DA4 #543FA4

triadic

#3F5DA4 #A43F5D #5DA43F

tetradic

#3F5DA4 #A43F90 #A4863F #3FA454

square

#3F5DA4 #A43F90 #A4863F #3FA454

split-complementary

#3F5DA4 #A4543F #90A43F

monochromatic

#1D2B4C #2E4478 #3F5DA4 #5F7CC1 #8BA0D2

Accessibility & contrast

On white

6.34

#3F5DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#3F5DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DA4

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DA4	#FFFFFF	#000000	##FFFFFF
##3F5DA4	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D64A7

Deuteranopia (green-blind)

#2E5BA3

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3f5da4;
/* rgb */ color: rgb(63, 93, 164);
/* oklch */ color: oklch(49.1% 0.119 265.1);

Tailwind

colors: {
  custom: {
    50: '#7d8abf',
    500: '#3f5da4',
    950: '#000000',
  },
}

SCSS

$custom: #3f5da4;
$custom-light: #7d8abf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5da4",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 164
  },
  "hsl": {
    "h": 222.178,
    "s": 44.493,
    "l": 44.51
  },
  "oklch": {
    "l": 0.49121,
    "c": 0.11928,
    "h": 265.1
  },
  "luminance": 0.11566
}

Semantic roles & 50–950 ramp

primary

#3F5DA4

secondary

#BDAB82

accent

#AE54D4

background

#F8F8FB

surface

#EFF0F7

border

#CACBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3F5DA4

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

Preview Lab → · Contrast checker → · Palette generator →