#3F5B98#3F5B98

#3F5B98 is a mid, moderate blue. Relative luminance 0.108; OKLCH L 47.9% C 0.104 H 264.2°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F5B98
RGB	rgb(63, 91, 152)
HSL	hsl(221, 41%, 42%)
HSV	hsv(221, 59%, 60%)
CMYK	cmyk(58.6%, 40.1%, 0%, 40.4%)
CIE-LAB	lab(39.25, 8.84, -36.57)
CIE-LCH	lch(39.25, 37.62, 283.59°)
OKLab	oklab(47.92% -0.0105 -0.1038)
OKLCH	oklch(47.92% 0.104 264.2)
XYZ	xyz(11.4565, 10.8050, 31.1815)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5B98 #987C3F

analogous

#3F8798 #3F5B98 #503F98

triadic

#3F5B98 #983F5B #5B983F

tetradic

#3F5B98 #983F87 #987C3F #3F9850

square

#3F5B98 #983F87 #987C3F #3F9850

split-complementary

#3F5B98 #98503F #87983F

monochromatic

#1B2741 #2D416D #3F5B98 #5A78BA #859BCC

Accessibility & contrast

On white

6.64

#3F5B98 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3F5B98 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5B98

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5B98	#FFFFFF	#000000	##FFFFFF
##3F5B98	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41619A

Deuteranopia (green-blind)

#365997

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f5b98;
/* rgb */ color: rgb(63, 91, 152);
/* oklch */ color: oklch(47.9% 0.104 264.2);

Tailwind

colors: {
  custom: {
    50: '#7b89b6',
    500: '#3f5b98',
    950: '#000000',
  },
}

SCSS

$custom: #3f5b98;
$custom-light: #7b89b6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5b98",
  "rgb": {
    "r": 63,
    "g": 91,
    "b": 152
  },
  "hsl": {
    "h": 221.124,
    "s": 41.395,
    "l": 42.157
  },
  "oklch": {
    "l": 0.47922,
    "c": 0.1043,
    "h": 264.2
  },
  "luminance": 0.10806
}

Semantic roles & 50–950 ramp

primary

#3F5B98

secondary

#B7A47C

accent

#AB57D1

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0B11

muted

#7C7C80

Preview Lab

Preview with #3F5B98

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

Preview Lab → · Contrast checker → · Palette generator →