#3F97BB#3F97BB

#3F97BB is a light, moderate cyan. Relative luminance 0.268; OKLCH L 63.8% C 0.099 H 228.4°. Best body text is #000000 at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#3F97BB
RGB	rgb(63, 151, 187)
HSL	hsl(197, 50%, 49%)
HSV	hsv(197, 66%, 73%)
CMYK	cmyk(66.3%, 19.3%, 0%, 26.7%)
CIE-LAB	lab(58.77, -14.89, -26.42)
CIE-LCH	lch(58.77, 30.33, 240.60°)
OKLab	oklab(63.83% -0.0657 -0.0739)
OKLCH	oklch(63.83% 0.099 228.4)
XYZ	xyz(22.0826, 26.7755, 51.0085)
Luminance	0.2678 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F97BB #BB633F

analogous

#3FBBA1 #3F97BB #3F59BB

triadic

#3F97BB #BB3F97 #97BB3F

tetradic

#3F97BB #A13FBB #BB633F #59BB3F

square

#3F97BB #A13FBB #BB633F #59BB3F

split-complementary

#3F97BB #BB3F59 #BBA13F

monochromatic

#204D5F #30728D #3F97BB #6AB0CD #98C9DC

Accessibility & contrast

On white

3.30

#3F97BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.36

#3F97BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F97BB

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F97BB	#FFFFFF	#000000	##000000
##3F97BB	1.00	3.30	6.36	6.36
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.36	21.00	1.00	1.00
##000000	6.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8494BD

Deuteranopia (green-blind)

#7388BB

Tritanopia (blue-blind)

#00A1A3

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #3f97bb;
/* rgb */ color: rgb(63, 151, 187);
/* oklch */ color: oklch(63.8% 0.099 228.4);

Tailwind

colors: {
  custom: {
    50: '#82b5cf',
    500: '#3f97bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f97bb;
$custom-light: #82b5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f97bb",
  "rgb": {
    "r": 63,
    "g": 151,
    "b": 187
  },
  "hsl": {
    "h": 197.419,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.63829,
    "c": 0.09889,
    "h": 228.4
  },
  "luminance": 0.26778
}

Semantic roles & 50–950 ramp

primary

#3F97BB

secondary

#C89F8E

accent

#774FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #3F97BB

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

Preview Lab → · Contrast checker → · Palette generator →