#3F6FC0#3F6FC0

#3F6FC0 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 54.9% C 0.137 H 260.2°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F6FC0
RGB	rgb(63, 111, 192)
HSL	hsl(218, 51%, 50%)
HSV	hsv(218, 67%, 75%)
CMYK	cmyk(67.2%, 42.2%, 0%, 24.7%)
CIE-LAB	lab(47.27, 10.33, -47.32)
CIE-LCH	lch(47.27, 48.43, 282.31°)
OKLab	oklab(54.86% -0.0233 -0.135)
OKLCH	oklch(54.86% 0.137 260.2)
XYZ	xyz(17.2454, 16.2297, 52.0828)
Luminance	0.1623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6FC0 #C0903F

analogous

#3FB0C0 #3F6FC0 #4F3FC0

triadic

#3F6FC0 #C03F6F #6FC03F

tetradic

#3F6FC0 #C03FB0 #C0903F #3FC04F

square

#3F6FC0 #C03FB0 #C0903F #3FC04F

split-complementary

#3F6FC0 #C04F3F #B0C03F

monochromatic

#213A64 #305492 #3F6FC0 #6D92CF #9BB4DE

Accessibility & contrast

On white

4.95

#3F6FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3F6FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6FC0

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6FC0	#FFFFFF	#000000	##FFFFFF
##3F6FC0	1.00	4.95	4.25	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4977C3

Deuteranopia (green-blind)

#346BBE

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f6fc0;
/* rgb */ color: rgb(63, 111, 192);
/* oklch */ color: oklch(54.9% 0.137 260.2);

Tailwind

colors: {
  custom: {
    50: '#8297d3',
    500: '#3f6fc0',
    950: '#000000',
  },
}

SCSS

$custom: #3f6fc0;
$custom-light: #8297d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6fc0",
  "rgb": {
    "r": 63,
    "g": 111,
    "b": 192
  },
  "hsl": {
    "h": 217.674,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.54864,
    "c": 0.13702,
    "h": 260.2
  },
  "luminance": 0.16231
}

Semantic roles & 50–950 ramp

primary

#3F6FC0

secondary

#CAB591

accent

#A64EDA

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0D14

muted

#7D7E83

Preview Lab

Preview with #3F6FC0

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

Preview Lab → · Contrast checker → · Palette generator →