#3F97B4#3F97B4

#3F97B4 is a light, moderate cyan. Relative luminance 0.265; OKLCH L 63.5% C 0.094 H 223.0°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F97B4
RGB	rgb(63, 151, 180)
HSL	hsl(195, 48%, 48%)
HSV	hsv(195, 65%, 71%)
CMYK	cmyk(65%, 16.1%, 0%, 29.4%)
CIE-LAB	lab(58.49, -17.14, -22.88)
CIE-LCH	lch(58.49, 28.59, 233.16°)
OKLab	oklab(63.52% -0.0683 -0.0638)
OKLCH	oklch(63.52% 0.094 223)
XYZ	xyz(21.3514, 26.4830, 47.1577)
Luminance	0.2648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F97B4 #B45C3F

analogous

#3FB497 #3F97B4 #3F5CB4

triadic

#3F97B4 #B43F97 #97B43F

tetradic

#3F97B4 #973FB4 #B45C3F #5CB43F

square

#3F97B4 #973FB4 #B45C3F #5CB43F

split-complementary

#3F97B4 #B43F5C #B4973F

monochromatic

#1F4B59 #2F7187 #3F97B4 #67B1CA #94C8DA

Accessibility & contrast

On white

3.33

#3F97B4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#3F97B4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F97B4

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F97B4	#FFFFFF	#000000	##000000
##3F97B4	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8694B6

Deuteranopia (green-blind)

#7687B4

Tritanopia (blue-blind)

#00A0A0

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #3f97b4;
/* rgb */ color: rgb(63, 151, 180);
/* oklch */ color: oklch(63.5% 0.094 223.0);

Tailwind

colors: {
  custom: {
    50: '#81b5ca',
    500: '#3f97b4',
    950: '#000000',
  },
}

SCSS

$custom: #3f97b4;
$custom-light: #81b5ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f97b4",
  "rgb": {
    "r": 63,
    "g": 151,
    "b": 180
  },
  "hsl": {
    "h": 194.872,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.6352,
    "c": 0.09351,
    "h": 223
  },
  "luminance": 0.26485
}

Semantic roles & 50–950 ramp

primary

#3F97B4

secondary

#C5998A

accent

#7250D8

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3F97B4

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

Preview Lab → · Contrast checker → · Palette generator →