#3F9EC8#3F9EC8

#3F9EC8 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.1% C 0.108 H 230.7°. Best body text is #000000 at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F9EC8
RGB	rgb(63, 158, 200)
HSL	hsl(198, 55%, 52%)
HSV	hsv(198, 69%, 78%)
CMYK	cmyk(68.5%, 21%, 0%, 21.6%)
CIE-LAB	lab(61.38, -14.45, -29.70)
CIE-LCH	lch(61.38, 33.03, 244.06°)
OKLab	oklab(66.08% -0.0682 -0.0833)
OKLCH	oklch(66.08% 0.108 230.7)
XYZ	xyz(24.6979, 29.6779, 59.0592)
Luminance	0.2968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9EC8 #C8693F

analogous

#3FC8AE #3F9EC8 #3F5AC8

triadic

#3F9EC8 #C83F9E #9EC83F

tetradic

#3F9EC8 #AE3FC8 #C8693F #5AC83F

square

#3F9EC8 #AE3FC8 #C8693F #5AC83F

split-complementary

#3F9EC8 #C83F5A #C8AE3F

monochromatic

#1F556D #2D7B9D #3F9EC8 #6FB6D6 #9ECEE3

Accessibility & contrast

On white

3.03

#3F9EC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.94

#3F9EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9EC8

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9EC8	#FFFFFF	#000000	##000000
##3F9EC8	1.00	3.03	6.94	6.94
#FFFFFF	3.03	1.00	21.00	21.00
#000000	6.94	21.00	1.00	1.00
##000000	6.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899CCA

Deuteranopia (green-blind)

#768EC7

Tritanopia (blue-blind)

#00AAAC

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9ec8;
/* rgb */ color: rgb(63, 158, 200);
/* oklch */ color: oklch(66.1% 0.108 230.7);

Tailwind

colors: {
  custom: {
    50: '#84bad9',
    500: '#3f9ec8',
    950: '#000000',
  },
}

SCSS

$custom: #3f9ec8;
$custom-light: #84bad9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9ec8",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 200
  },
  "hsl": {
    "h": 198.394,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.66084,
    "c": 0.10762,
    "h": 230.7
  },
  "luminance": 0.29681
}

Semantic roles & 50–950 ramp

primary

#3F9EC8

secondary

#D0A693

accent

#7749DF

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #3F9EC8

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

Preview Lab → · Contrast checker → · Palette generator →