#3F6DAF#3F6DAF

#3F6DAF is a mid, moderate blue. Relative luminance 0.151; OKLCH L 53.4% C 0.116 H 257.5°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F6DAF
RGB	rgb(63, 109, 175)
HSL	hsl(215, 47%, 47%)
HSV	hsv(215, 64%, 69%)
CMYK	cmyk(64%, 37.7%, 0%, 31.4%)
CIE-LAB	lab(45.75, 5.53, -39.87)
CIE-LCH	lch(45.75, 40.25, 277.90°)
OKLab	oklab(53.38% -0.025 -0.1132)
OKLCH	oklch(53.38% 0.116 257.5)
XYZ	xyz(15.2536, 15.0877, 42.6575)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6DAF #AF813F

analogous

#3FA5AF #3F6DAF #493FAF

triadic

#3F6DAF #AF3F6D #6DAF3F

tetradic

#3F6DAF #AF3FA5 #AF813F #3FAF49

square

#3F6DAF #AF3FA5 #AF813F #3FAF49

split-complementary

#3F6DAF #AF493F #A5AF3F

monochromatic

#1F3555 #2F5182 #3F6DAF #648DC7 #91AED7

Accessibility & contrast

On white

5.23

#3F6DAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#3F6DAF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6DAF

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6DAF	#FFFFFF	#000000	##FFFFFF
##3F6DAF	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5072B2

Deuteranopia (green-blind)

#4168AE

Tritanopia (blue-blind)

#007C85

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3f6daf;
/* rgb */ color: rgb(63, 109, 175);
/* oklch */ color: oklch(53.4% 0.116 257.5);

Tailwind

colors: {
  custom: {
    50: '#7f96c7',
    500: '#3f6daf',
    950: '#000000',
  },
}

SCSS

$custom: #3f6daf;
$custom-light: #7f96c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6daf",
  "rgb": {
    "r": 63,
    "g": 109,
    "b": 175
  },
  "hsl": {
    "h": 215.357,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.53377,
    "c": 0.11595,
    "h": 257.5
  },
  "luminance": 0.15089
}

Semantic roles & 50–950 ramp

primary

#3F6DAF

secondary

#C3AA87

accent

#A051D7

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3F6DAF

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

Preview Lab → · Contrast checker → · Palette generator →