#3F7CE2#3F7CE2

#3F7CE2 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.9% C 0.168 H 260.1°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CE2
RGB	rgb(63, 124, 226)
HSL	hsl(218, 74%, 57%)
HSV	hsv(218, 72%, 89%)
CMYK	cmyk(72.1%, 45.1%, 0%, 11.4%)
CIE-LAB	lab(52.91, 14.48, -57.65)
CIE-LCH	lch(52.91, 59.44, 284.10°)
OKLab	oklab(59.86% -0.0289 -0.1652)
OKLCH	oklch(59.86% 0.168 260.1)
XYZ	xyz(22.9801, 20.9605, 74.7714)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CE2 #E2A53F

analogous

#3FCEE2 #3F7CE2 #543FE2

triadic

#3F7CE2 #E23F7C #7CE23F

tetradic

#3F7CE2 #E23FCE #E2A53F #3FE254

square

#3F7CE2 #E23FCE #E2A53F #3FE254

split-complementary

#3F7CE2 #E2543F #CEE23F

monochromatic

#164491 #1E5DC6 #3F7CE2 #74A0EA #A9C5F2

Accessibility & contrast

On white

4.04

#3F7CE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3F7CE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CE2

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CE2	#FFFFFF	#000000	##000000
##3F7CE2	1.00	4.04	5.19	5.19
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4886E6

Deuteranopia (green-blind)

#2577E0

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f7ce2;
/* rgb */ color: rgb(63, 124, 226);
/* oklch */ color: oklch(59.9% 0.168 260.1);

Tailwind

colors: {
  custom: {
    50: '#88a1ec',
    500: '#3f7ce2',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ce2;
$custom-light: #88a1ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ce2",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 226
  },
  "hsl": {
    "h": 217.546,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59857,
    "c": 0.16768,
    "h": 260.1
  },
  "luminance": 0.20963
}

Semantic roles & 50–950 ramp

primary

#3F7CE2

secondary

#E0C79D

accent

#AB37F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3F7CE2

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

Preview Lab → · Contrast checker → · Palette generator →