#3F7EE2#3F7EE2

#3F7EE2 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.3% C 0.165 H 259.3°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EE2
RGB	rgb(63, 126, 226)
HSL	hsl(217, 74%, 57%)
HSV	hsv(217, 72%, 89%)
CMYK	cmyk(72.1%, 44.2%, 0%, 11.4%)
CIE-LAB	lab(53.46, 13.24, -56.76)
CIE-LCH	lch(53.46, 58.29, 283.13°)
OKLab	oklab(60.28% -0.0306 -0.1625)
OKLCH	oklch(60.28% 0.165 259.3)
XYZ	xyz(23.2332, 21.4669, 74.8558)
Luminance	0.2147 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EE2 #E2A33F

analogous

#3FD0E2 #3F7EE2 #523FE2

triadic

#3F7EE2 #E23F7E #7EE23F

tetradic

#3F7EE2 #E23FD0 #E2A33F #3FE252

square

#3F7EE2 #E23FD0 #E2A33F #3FE252

split-complementary

#3F7EE2 #E2523F #D0E23F

monochromatic

#164591 #1E5FC6 #3F7EE2 #74A2EA #A9C5F2

Accessibility & contrast

On white

3.97

#3F7EE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#3F7EE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EE2

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EE2	#FFFFFF	#000000	##000000
##3F7EE2	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C88E6

Deuteranopia (green-blind)

#2B79E0

Tritanopia (blue-blind)

#0095A5

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3f7ee2;
/* rgb */ color: rgb(63, 126, 226);
/* oklch */ color: oklch(60.3% 0.165 259.3);

Tailwind

colors: {
  custom: {
    50: '#88a2ec',
    500: '#3f7ee2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ee2;
$custom-light: #88a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ee2",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 226
  },
  "hsl": {
    "h": 216.81,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60282,
    "c": 0.1654,
    "h": 259.3
  },
  "luminance": 0.21469
}

Semantic roles & 50–950 ramp

primary

#3F7EE2

secondary

#E0C69D

accent

#A937F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #3F7EE2

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

Preview Lab → · Contrast checker → · Palette generator →