#3F98E4#3F98E4

#3F98E4 is a light, vivid cyan. Relative luminance 0.291; OKLCH L 66.1% C 0.141 H 247.8°. Best body text is #000000 at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F98E4
RGB	rgb(63, 152, 228)
HSL	hsl(208, 75%, 57%)
HSV	hsv(208, 72%, 89%)
CMYK	cmyk(72.4%, 33.3%, 0%, 10.6%)
CIE-LAB	lab(60.88, -1.58, -46.07)
CIE-LCH	lch(60.88, 46.10, 268.04°)
OKLab	oklab(66.1% -0.0534 -0.1308)
OKLCH	oklch(66.1% 0.141 247.8)
XYZ	xyz(27.2764, 29.1116, 77.5653)
Luminance	0.2912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F98E4 #E48B3F

analogous

#3FE4DD #3F98E4 #3F46E4

triadic

#3F98E4 #E43F98 #98E43F

tetradic

#3F98E4 #DD3FE4 #E48B3F #46E43F

square

#3F98E4 #DD3FE4 #E48B3F #46E43F

split-complementary

#3F98E4 #E43F46 #E4DD3F

monochromatic

#155994 #1C7AC9 #3F98E4 #75B5EC #AAD2F3

Accessibility & contrast

On white

3.08

#3F98E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.82

#3F98E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F98E4

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F98E4	#FFFFFF	#000000	##000000
##3F98E4	1.00	3.08	6.82	6.82
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.82	21.00	1.00	1.00
##000000	6.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#759BE7

Deuteranopia (green-blind)

#5E8CE3

Tritanopia (blue-blind)

#00AAB3

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #3f98e4;
/* rgb */ color: rgb(63, 152, 228);
/* oklch */ color: oklch(66.1% 0.141 247.8);

Tailwind

colors: {
  custom: {
    50: '#88b6ed',
    500: '#3f98e4',
    950: '#000000',
  },
}

SCSS

$custom: #3f98e4;
$custom-light: #88b6ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3f98e4",
  "rgb": {
    "r": 63,
    "g": 152,
    "b": 228
  },
  "hsl": {
    "h": 207.636,
    "s": 75.342,
    "l": 57.059
  },
  "oklch": {
    "l": 0.66104,
    "c": 0.14128,
    "h": 247.8
  },
  "luminance": 0.29115
}

Semantic roles & 50–950 ramp

primary

#3F98E4

secondary

#E1BD9E

accent

#8C36F2

background

#F9FBFE

surface

#F1F6FD

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #3F98E4

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

Preview Lab → · Contrast checker → · Palette generator →