#3F75C0#3F75C0

#3F75C0 is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.2% C 0.130 H 257.0°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F75C0
RGB	rgb(63, 117, 192)
HSL	hsl(215, 51%, 50%)
HSV	hsv(215, 67%, 75%)
CMYK	cmyk(67.2%, 39.1%, 0%, 24.7%)
CIE-LAB	lab(48.99, 6.60, -44.59)
CIE-LCH	lch(48.99, 45.08, 278.42°)
OKLab	oklab(56.19% -0.0292 -0.1269)
OKLCH	oklch(56.19% 0.13 257)
XYZ	xyz(17.9222, 17.5833, 52.3084)
Luminance	0.1759 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F75C0 #C08A3F

analogous

#3FB5C0 #3F75C0 #4A3FC0

triadic

#3F75C0 #C03F75 #75C03F

tetradic

#3F75C0 #C03FB5 #C08A3F #3FC04A

square

#3F75C0 #C03FB5 #C08A3F #3FC04A

split-complementary

#3F75C0 #C04A3F #B5C03F

monochromatic

#213D64 #305992 #3F75C0 #6D96CF #9BB7DE

Accessibility & contrast

On white

4.65

#3F75C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3F75C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F75C0

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F75C0	#FFFFFF	#000000	##FFFFFF
##3F75C0	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#537BC3

Deuteranopia (green-blind)

#406FBE

Tritanopia (blue-blind)

#008691

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f75c0;
/* rgb */ color: rgb(63, 117, 192);
/* oklch */ color: oklch(56.2% 0.130 257.0);

Tailwind

colors: {
  custom: {
    50: '#829cd3',
    500: '#3f75c0',
    950: '#000000',
  },
}

SCSS

$custom: #3f75c0;
$custom-light: #829cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f75c0",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 192
  },
  "hsl": {
    "h": 214.884,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.56191,
    "c": 0.13025,
    "h": 257
  },
  "luminance": 0.17585
}

Semantic roles & 50–950 ramp

primary

#3F75C0

secondary

#CAB291

accent

#9F4EDA

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F75C0

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

Preview Lab → · Contrast checker → · Palette generator →