#3F7EE1#3F7EE1

#3F7EE1 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.164 H 259.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EE1
RGB	rgb(63, 126, 225)
HSL	hsl(217, 73%, 56%)
HSV	hsv(217, 72%, 88%)
CMYK	cmyk(72%, 44%, 0%, 11.8%)
CIE-LAB	lab(53.40, 12.88, -56.30)
CIE-LCH	lch(53.40, 57.75, 282.89°)
OKLab	oklab(60.22% -0.0308 -0.1612)
OKLCH	oklch(60.22% 0.164 259.2)
XYZ	xyz(23.0964, 21.4122, 74.1353)
Luminance	0.2142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EE1 #E1A23F

analogous

#3FCFE1 #3F7EE1 #513FE1

triadic

#3F7EE1 #E13F7E #7EE13F

tetradic

#3F7EE1 #E13FCF #E1A23F #3FE151

square

#3F7EE1 #E13FCF #E1A23F #3FE151

split-complementary

#3F7EE1 #E1513F #CFE13F

monochromatic

#16458F #1F5FC4 #3F7EE1 #74A2E9 #A9C5F2

Accessibility & contrast

On white

3.98

#3F7EE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#3F7EE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EE1

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EE1	#FFFFFF	#000000	##000000
##3F7EE1	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C88E5

Deuteranopia (green-blind)

#2D79DF

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3f7ee1;
/* rgb */ color: rgb(63, 126, 225);
/* oklch */ color: oklch(60.2% 0.164 259.2);

Tailwind

colors: {
  custom: {
    50: '#88a2eb',
    500: '#3f7ee1',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ee1;
$custom-light: #88a2eb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ee1",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 225
  },
  "hsl": {
    "h": 216.667,
    "s": 72.973,
    "l": 56.471
  },
  "oklch": {
    "l": 0.60217,
    "c": 0.16408,
    "h": 259.2
  },
  "luminance": 0.21415
}

Semantic roles & 50–950 ramp

primary

#3F7EE1

secondary

#DFC59D

accent

#A838F0

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #3F7EE1

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

Preview Lab → · Contrast checker → · Palette generator →