#3F9EFF#3F9EFF

#3F9EFF is a light, vivid cyan. Relative luminance 0.327; OKLCH L 68.9% C 0.168 H 252.0°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#3F9EFF
RGB	rgb(63, 158, 255)
HSL	hsl(210, 100%, 62%)
HSV	hsv(210, 75%, 100%)
CMYK	cmyk(75.3%, 38%, 0%, 0%)
CIE-LAB	lab(63.94, 4.43, -56.06)
CIE-LCH	lch(63.94, 56.24, 274.51°)
OKLab	oklab(68.95% -0.0519 -0.1599)
OKLCH	oklch(68.95% 0.168 252)
XYZ	xyz(32.3200, 32.7267, 99.2019)
Luminance	0.3273 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9EFF #FFA03F

analogous

#3FFEFF #3F9EFF #403FFF

triadic

#3F9EFF #FF3F9E #9EFF3F

tetradic

#3F9EFF #FF3FFE #FFA03F #3FFF40

square

#3F9EFF #FF3FFE #FFA03F #3FFF40

split-complementary

#3F9EFF #FF403F #FEFF3F

monochromatic

#0061C4 #027FFF #3F9EFF #7CBDFF #B9DCFF

Accessibility & contrast

On white

2.78

#3F9EFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#3F9EFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3F9EFF

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9EFF	#FFFFFF	#000000	##000000
##3F9EFF	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#70A5FF

Deuteranopia (green-blind)

#5293FD

Tritanopia (blue-blind)

#00B5C2

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #3f9eff;
/* rgb */ color: rgb(63, 158, 255);
/* oklch */ color: oklch(68.9% 0.168 252.0);

Tailwind

colors: {
  custom: {
    50: '#8dbaff',
    500: '#3f9eff',
    950: '#000000',
  },
}

SCSS

$custom: #3f9eff;
$custom-light: #8dbaff;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9eff",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 255
  },
  "hsl": {
    "h": 210.313,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.68949,
    "c": 0.16816,
    "h": 252
  },
  "luminance": 0.3273
}

Semantic roles & 50–950 ramp

primary

#3F9EFF

secondary

#F0CDAA

accent

#7400E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0E1118

muted

#7E8086

Preview Lab

Preview with #3F9EFF

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

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