#3F7DE2#3F7DE2

#3F7DE2 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.1% C 0.167 H 259.7°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DE2
RGB	rgb(63, 125, 226)
HSL	hsl(217, 74%, 57%)
HSV	hsv(217, 72%, 89%)
CMYK	cmyk(72.1%, 44.7%, 0%, 11.4%)
CIE-LAB	lab(53.18, 13.86, -57.20)
CIE-LCH	lch(53.18, 58.86, 283.62°)
OKLab	oklab(60.07% -0.0297 -0.1638)
OKLCH	oklch(60.07% 0.167 259.7)
XYZ	xyz(23.1060, 21.2125, 74.8134)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DE2 #E2A43F

analogous

#3FCFE2 #3F7DE2 #533FE2

triadic

#3F7DE2 #E23F7D #7DE23F

tetradic

#3F7DE2 #E23FCF #E2A43F #3FE253

square

#3F7DE2 #E23FCF #E2A43F #3FE253

split-complementary

#3F7DE2 #E2533F #CFE23F

monochromatic

#164591 #1E5EC6 #3F7DE2 #74A1EA #A9C5F2

Accessibility & contrast

On white

4.01

#3F7DE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#3F7DE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DE2

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DE2	#FFFFFF	#000000	##000000
##3F7DE2	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A87E6

Deuteranopia (green-blind)

#2878E0

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f7de2;
/* rgb */ color: rgb(63, 125, 226);
/* oklch */ color: oklch(60.1% 0.167 259.7);

Tailwind

colors: {
  custom: {
    50: '#88a2ec',
    500: '#3f7de2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7de2;
$custom-light: #88a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7de2",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 226
  },
  "hsl": {
    "h": 217.178,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60069,
    "c": 0.16653,
    "h": 259.7
  },
  "luminance": 0.21215
}

Semantic roles & 50–950 ramp

primary

#3F7DE2

secondary

#E0C69D

accent

#AA37F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3F7DE2

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

Preview Lab → · Contrast checker → · Palette generator →