#3F669D#3F669D

#3F669D is a mid, moderate blue. Relative luminance 0.130; OKLCH L 50.7% C 0.099 H 257.1°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F669D
RGB	rgb(63, 102, 157)
HSL	hsl(215, 43%, 43%)
HSV	hsv(215, 60%, 62%)
CMYK	cmyk(59.9%, 35%, 0%, 38.4%)
CIE-LAB	lab(42.75, 3.61, -34.02)
CIE-LCH	lch(42.75, 34.21, 276.06°)
OKLab	oklab(50.73% -0.0219 -0.0962)
OKLCH	oklch(50.73% 0.099 257.1)
XYZ	xyz(12.8849, 12.9927, 33.7206)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F669D #9D763F

analogous

#3F959D #3F669D #473F9D

triadic

#3F669D #9D3F66 #669D3F

tetradic

#3F669D #9D3F95 #9D763F #3F9D47

square

#3F669D #9D3F95 #9D763F #3F9D47

split-complementary

#3F669D #9D473F #959D3F

monochromatic

#1C2D46 #2D4A71 #3F669D #5C84BD #87A5CF

Accessibility & contrast

On white

5.84

#3F669D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#3F669D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F669D

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F669D	#FFFFFF	#000000	##FFFFFF
##3F669D	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F6A9F

Deuteranopia (green-blind)

#43619C

Tritanopia (blue-blind)

#00727A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3f669d;
/* rgb */ color: rgb(63, 102, 157);
/* oklch */ color: oklch(50.7% 0.099 257.1);

Tailwind

colors: {
  custom: {
    50: '#7c91ba',
    500: '#3f669d',
    950: '#000000',
  },
}

SCSS

$custom: #3f669d;
$custom-light: #7c91ba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f669d",
  "rgb": {
    "r": 63,
    "g": 102,
    "b": 157
  },
  "hsl": {
    "h": 215.106,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50729,
    "c": 0.09867,
    "h": 257.1
  },
  "luminance": 0.12994
}

Semantic roles & 50–950 ramp

primary

#3F669D

secondary

#BAA17E

accent

#9F55D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #3F669D

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

Preview Lab → · Contrast checker → · Palette generator →