#3F9BDA#3F9BDA

#3F9BDA is a light, vivid cyan. Relative luminance 0.296; OKLCH L 66.3% C 0.127 H 242.3°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F9BDA
RGB	rgb(63, 155, 218)
HSL	hsl(204, 68%, 55%)
HSV	hsv(204, 71%, 85%)
CMYK	cmyk(71.1%, 28.9%, 0%, 14.5%)
CIE-LAB	lab(61.27, -6.75, -39.90)
CIE-LCH	lch(61.27, 40.47, 260.40°)
OKLab	oklab(66.26% -0.0592 -0.1128)
OKLCH	oklch(66.26% 0.127 242.3)
XYZ	xyz(26.4212, 29.5584, 70.6290)
Luminance	0.2956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9BDA #DA7E3F

analogous

#3FDACC #3F9BDA #3F4DDA

triadic

#3F9BDA #DA3F9B #9BDA3F

tetradic

#3F9BDA #CC3FDA #DA7E3F #4DDA3F

square

#3F9BDA #CC3FDA #DA7E3F #4DDA3F

split-complementary

#3F9BDA #DA3F4D #DACC3F

monochromatic

#1A5985 #247CB8 #3F9BDA #72B6E4 #A6D0EE

Accessibility & contrast

On white

3.04

#3F9BDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#3F9BDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9BDA

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9BDA	#FFFFFF	#000000	##000000
##3F9BDA	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)

#7E9CDD

Deuteranopia (green-blind)

#698DD9

Tritanopia (blue-blind)

#00ABB1

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9bda;
/* rgb */ color: rgb(63, 155, 218);
/* oklch */ color: oklch(66.3% 0.127 242.3);

Tailwind

colors: {
  custom: {
    50: '#86b8e5',
    500: '#3f9bda',
    950: '#000000',
  },
}

SCSS

$custom: #3f9bda;
$custom-light: #86b8e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9bda",
  "rgb": {
    "r": 63,
    "g": 155,
    "b": 218
  },
  "hsl": {
    "h": 204.387,
    "s": 67.686,
    "l": 55.098
  },
  "oklch": {
    "l": 0.66257,
    "c": 0.12736,
    "h": 242.3
  },
  "luminance": 0.29561
}

Semantic roles & 50–950 ramp

primary

#3F9BDA

secondary

#DBB49A

accent

#843DEB

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0D1116

muted

#7D8084

Preview Lab

Preview with #3F9BDA

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

Preview Lab → · Contrast checker → · Palette generator →