#3F7BE2#3F7BE2

#3F7BE2 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.6% C 0.169 H 260.4°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BE2
RGB	rgb(63, 123, 226)
HSL	hsl(218, 74%, 57%)
HSV	hsv(218, 72%, 89%)
CMYK	cmyk(72.1%, 45.6%, 0%, 11.4%)
CIE-LAB	lab(52.63, 15.10, -58.09)
CIE-LCH	lch(52.63, 60.02, 284.57°)
OKLab	oklab(59.65% -0.028 -0.1665)
OKLCH	oklch(59.65% 0.169 260.4)
XYZ	xyz(22.8554, 20.7112, 74.7299)
Luminance	0.2071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BE2 #E2A63F

analogous

#3FCDE2 #3F7BE2 #553FE2

triadic

#3F7BE2 #E23F7B #7BE23F

tetradic

#3F7BE2 #E23FCD #E2A63F #3FE255

square

#3F7BE2 #E23FCD #E2A63F #3FE255

split-complementary

#3F7BE2 #E2553F #CDE23F

monochromatic

#164391 #1E5CC6 #3F7BE2 #74A0EA #A9C4F2

Accessibility & contrast

On white

4.08

#3F7BE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#3F7BE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BE2

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BE2	#FFFFFF	#000000	##000000
##3F7BE2	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4586E6

Deuteranopia (green-blind)

#2177E0

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f7be2;
/* rgb */ color: rgb(63, 123, 226);
/* oklch */ color: oklch(59.6% 0.169 260.4);

Tailwind

colors: {
  custom: {
    50: '#88a0ec',
    500: '#3f7be2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7be2;
$custom-light: #88a0ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7be2",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 226
  },
  "hsl": {
    "h": 217.914,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59646,
    "c": 0.16882,
    "h": 260.4
  },
  "luminance": 0.20714
}

Semantic roles & 50–950 ramp

primary

#3F7BE2

secondary

#E0C79D

accent

#AC37F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3F7BE2

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

Preview Lab → · Contrast checker → · Palette generator →