#3F97E4#3F97E4

#3F97E4 is a light, vivid cyan. Relative luminance 0.288; OKLCH L 65.9% C 0.142 H 248.3°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F97E4
RGB	rgb(63, 151, 228)
HSL	hsl(208, 75%, 57%)
HSV	hsv(208, 72%, 89%)
CMYK	cmyk(72.4%, 33.8%, 0%, 10.6%)
CIE-LAB	lab(60.59, -1.00, -46.52)
CIE-LCH	lch(60.59, 46.53, 268.77°)
OKLab	oklab(65.88% -0.0525 -0.1321)
OKLCH	oklch(65.88% 0.142 248.3)
XYZ	xyz(27.1148, 28.7884, 77.5114)
Luminance	0.2879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F97E4 #E48C3F

analogous

#3FE4DE #3F97E4 #3F45E4

triadic

#3F97E4 #E43F97 #97E43F

tetradic

#3F97E4 #DE3FE4 #E48C3F #45E43F

square

#3F97E4 #DE3FE4 #E48C3F #45E43F

split-complementary

#3F97E4 #E43F45 #E4DE3F

monochromatic

#155994 #1C79C9 #3F97E4 #75B4EC #AAD1F3

Accessibility & contrast

On white

3.11

#3F97E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#3F97E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F97E4

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F97E4	#FFFFFF	#000000	##000000
##3F97E4	1.00	3.11	6.76	6.76
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.76	21.00	1.00	1.00
##000000	6.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#749BE7

Deuteranopia (green-blind)

#5C8BE3

Tritanopia (blue-blind)

#00A9B3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f97e4;
/* rgb */ color: rgb(63, 151, 228);
/* oklch */ color: oklch(65.9% 0.142 248.3);

Tailwind

colors: {
  custom: {
    50: '#88b5ed',
    500: '#3f97e4',
    950: '#000000',
  },
}

SCSS

$custom: #3f97e4;
$custom-light: #88b5ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3f97e4",
  "rgb": {
    "r": 63,
    "g": 151,
    "b": 228
  },
  "hsl": {
    "h": 208,
    "s": 75.342,
    "l": 57.059
  },
  "oklch": {
    "l": 0.65879,
    "c": 0.14217,
    "h": 248.3
  },
  "luminance": 0.28791
}

Semantic roles & 50–950 ramp

primary

#3F97E4

secondary

#E1BD9E

accent

#8E36F2

background

#F9FBFE

surface

#F1F6FD

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #3F97E4

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

Preview Lab → · Contrast checker → · Palette generator →