#3F97F1#3F97F1

#3F97F1 is a light, vivid cyan. Relative luminance 0.295; OKLCH L 66.6% C 0.158 H 251.8°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F97F1
RGB	rgb(63, 151, 241)
HSL	hsl(210, 86%, 60%)
HSV	hsv(210, 74%, 95%)
CMYK	cmyk(73.9%, 37.3%, 0%, 5.5%)
CIE-LAB	lab(61.25, 3.57, -52.66)
CIE-LCH	lch(61.25, 52.78, 273.88°)
OKLab	oklab(66.61% -0.0492 -0.1501)
OKLCH	oklch(66.61% 0.158 251.8)
XYZ	xyz(28.9877, 29.5375, 87.3756)
Luminance	0.2954 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F97F1 #F1993F

analogous

#3FF0F1 #3F97F1 #403FF1

triadic

#3F97F1 #F13F97 #97F13F

tetradic

#3F97F1 #F13FF0 #F1993F #3FF140

square

#3F97F1 #F13FF0 #F1993F #3FF140

split-complementary

#3F97F1 #F1403F #F0F13F

monochromatic

#0C5AA9 #1178E2 #3F97F1 #78B6F5 #B1D5F9

Accessibility & contrast

On white

3.04

#3F97F1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#3F97F1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F97F1

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F97F1	#FFFFFF	#000000	##000000
##3F97F1	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D9DF5

Deuteranopia (green-blind)

#528CEF

Tritanopia (blue-blind)

#00ACB8

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f97f1;
/* rgb */ color: rgb(63, 151, 241);
/* oklch */ color: oklch(66.6% 0.158 251.8);

Tailwind

colors: {
  custom: {
    50: '#8ab5f6',
    500: '#3f97f1',
    950: '#000000',
  },
}

SCSS

$custom: #3f97f1;
$custom-light: #8ab5f6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f97f1",
  "rgb": {
    "r": 63,
    "g": 151,
    "b": 241
  },
  "hsl": {
    "h": 210.337,
    "s": 86.408,
    "l": 59.608
  },
  "oklch": {
    "l": 0.66611,
    "c": 0.15794,
    "h": 251.8
  },
  "luminance": 0.29541
}

Semantic roles & 50–950 ramp

primary

#3F97F1

secondary

#E8C6A3

accent

#952BFD

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0D1117

muted

#7E8085

Preview Lab

Preview with #3F97F1

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

Preview Lab → · Contrast checker → · Palette generator →