#3F7CD2#3F7CD2

#3F7CD2 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.8% C 0.147 H 257.4°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CD2
RGB	rgb(63, 124, 210)
HSL	hsl(215, 62%, 54%)
HSV	hsv(215, 70%, 82%)
CMYK	cmyk(70%, 41%, 0%, 17.6%)
CIE-LAB	lab(51.98, 8.72, -50.11)
CIE-LCH	lch(51.98, 50.86, 279.88°)
OKLab	oklab(58.84% -0.0319 -0.143)
OKLCH	oklch(58.84% 0.147 257.4)
XYZ	xyz(20.8862, 20.1230, 63.7437)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CD2 #D2953F

analogous

#3FC5D2 #3F7CD2 #4B3FD2

triadic

#3F7CD2 #D23F7C #7CD23F

tetradic

#3F7CD2 #D23FC5 #D2953F #3FD24B

square

#3F7CD2 #D23FC5 #D2953F #3FD24B

split-complementary

#3F7CD2 #D24B3F #C5D23F

monochromatic

#1D437A #285FAC #3F7CD2 #719EDE #A2C0E9

Accessibility & contrast

On white

4.18

#3F7CD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#3F7CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CD2

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CD2	#FFFFFF	#000000	##000000
##3F7CD2	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5483D5

Deuteranopia (green-blind)

#3C76D0

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7cd2;
/* rgb */ color: rgb(63, 124, 210);
/* oklch */ color: oklch(58.8% 0.147 257.4);

Tailwind

colors: {
  custom: {
    50: '#85a1e0',
    500: '#3f7cd2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cd2;
$custom-light: #85a1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cd2",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 210
  },
  "hsl": {
    "h": 215.102,
    "s": 62.025,
    "l": 53.529
  },
  "oklch": {
    "l": 0.58837,
    "c": 0.14654,
    "h": 257.4
  },
  "luminance": 0.20125
}

Semantic roles & 50–950 ramp

primary

#3F7CD2

secondary

#D6BC97

accent

#A243E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7CD2

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

Preview Lab → · Contrast checker → · Palette generator →