#3F9EB4#3F9EB4

#3F9EB4 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.2% C 0.093 H 215.8°. Best body text is #000000 at 6.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F9EB4
RGB	rgb(63, 158, 180)
HSL	hsl(191, 48%, 48%)
HSV	hsv(191, 65%, 71%)
CMYK	cmyk(65%, 12.2%, 0%, 29.4%)
CIE-LAB	lab(60.61, -20.85, -19.65)
CIE-LCH	lch(60.61, 28.65, 223.30°)
OKLab	oklab(65.22% -0.0758 -0.0546)
OKLCH	oklch(65.22% 0.093 215.8)
XYZ	xyz(22.5116, 28.8034, 47.5444)
Luminance	0.2881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9EB4 #B4553F

analogous

#3FB48F #3F9EB4 #3F64B4

triadic

#3F9EB4 #B43F9E #9EB43F

tetradic

#3F9EB4 #8F3FB4 #B4553F #64B43F

square

#3F9EB4 #8F3FB4 #B4553F #64B43F

split-complementary

#3F9EB4 #B43F64 #B48F3F

monochromatic

#1F4E59 #2F7687 #3F9EB4 #67B7CA #94CCDA

Accessibility & contrast

On white

3.11

#3F9EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.76

#3F9EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9EB4

6.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9EB4	#FFFFFF	#000000	##000000
##3F9EB4	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)

#8F99B5

Deuteranopia (green-blind)

#7E8DB4

Tritanopia (blue-blind)

#00A6A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #3f9eb4;
/* rgb */ color: rgb(63, 158, 180);
/* oklch */ color: oklch(65.2% 0.093 215.8);

Tailwind

colors: {
  custom: {
    50: '#81bbca',
    500: '#3f9eb4',
    950: '#000000',
  },
}

SCSS

$custom: #3f9eb4;
$custom-light: #81bbca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9eb4",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 180
  },
  "hsl": {
    "h": 191.282,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.65216,
    "c": 0.09343,
    "h": 215.8
  },
  "luminance": 0.28806
}

Semantic roles & 50–950 ramp

primary

#3F9EB4

secondary

#C5958A

accent

#6A50D8

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3F9EB4

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

Preview Lab → · Contrast checker → · Palette generator →