#3F68AA#3F68AA

#3F68AA is a mid, moderate blue. Relative luminance 0.139; OKLCH L 51.9% C 0.115 H 259.5°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F68AA
RGB	rgb(63, 104, 170)
HSL	hsl(217, 46%, 46%)
HSV	hsv(217, 63%, 67%)
CMYK	cmyk(62.9%, 38.8%, 0%, 33.3%)
CIE-LAB	lab(44.03, 6.89, -39.68)
CIE-LCH	lch(44.03, 40.27, 279.86°)
OKLab	oklab(51.95% -0.0209 -0.1127)
OKLCH	oklch(51.95% 0.115 259.5)
XYZ	xyz(14.2533, 13.8584, 39.9462)
Luminance	0.1386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F68AA #AA813F

analogous

#3F9DAA #3F68AA #4B3FAA

triadic

#3F68AA #AA3F68 #68AA3F

tetradic

#3F68AA #AA3F9D #AA813F #3FAA4B

square

#3F68AA #AA3F9D #AA813F #3FAA4B

split-complementary

#3F68AA #AA4B3F #9DAA3F

monochromatic

#1E3151 #2E4D7D #3F68AA #6288C5 #8EA9D5

Accessibility & contrast

On white

5.57

#3F68AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#3F68AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F68AA

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F68AA	#FFFFFF	#000000	##FFFFFF
##3F68AA	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B6DAD

Deuteranopia (green-blind)

#3C63A9

Tritanopia (blue-blind)

#007781

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3f68aa;
/* rgb */ color: rgb(63, 104, 170);
/* oklch */ color: oklch(51.9% 0.115 259.5);

Tailwind

colors: {
  custom: {
    50: '#7e92c3',
    500: '#3f68aa',
    950: '#000000',
  },
}

SCSS

$custom: #3f68aa;
$custom-light: #7e92c3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f68aa",
  "rgb": {
    "r": 63,
    "g": 104,
    "b": 170
  },
  "hsl": {
    "h": 217.009,
    "s": 45.923,
    "l": 45.686
  },
  "oklch": {
    "l": 0.51948,
    "c": 0.11463,
    "h": 259.5
  },
  "luminance": 0.1386
}

Semantic roles & 50–950 ramp

primary

#3F68AA

secondary

#C0A985

accent

#A352D6

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0D12

muted

#7C7D81

Preview Lab

Preview with #3F68AA

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

Preview Lab → · Contrast checker → · Palette generator →