#3F91D0#3F91D0

#3F91D0 is a light, vivid cyan. Relative luminance 0.259; OKLCH L 63.4% C 0.124 H 244.9°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F91D0
RGB	rgb(63, 145, 208)
HSL	hsl(206, 61%, 53%)
HSV	hsv(206, 70%, 82%)
CMYK	cmyk(69.7%, 30.3%, 0%, 18.4%)
CIE-LAB	lab(57.90, -4.48, -39.60)
CIE-LCH	lch(57.90, 39.85, 263.55°)
OKLab	oklab(63.44% -0.0525 -0.112)
OKLCH	oklch(63.44% 0.124 244.9)
XYZ	xyz(23.5561, 25.8591, 63.4121)
Luminance	0.2586 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91D0 #D07E3F

analogous

#3FD0C6 #3F91D0 #3F48D0

triadic

#3F91D0 #D03F91 #91D03F

tetradic

#3F91D0 #C63FD0 #D07E3F #48D03F

square

#3F91D0 #C63FD0 #D07E3F #48D03F

split-complementary

#3F91D0 #D03F48 #D0C63F

monochromatic

#1D5077 #2971A9 #3F91D0 #70ADDC #A1C9E8

Accessibility & contrast

On white

3.40

#3F91D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.17

#3F91D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91D0

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91D0	#FFFFFF	#000000	##000000
##3F91D0	1.00	3.40	6.17	6.17
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.17	21.00	1.00	1.00
##000000	6.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7593D3

Deuteranopia (green-blind)

#6085CF

Tritanopia (blue-blind)

#00A0A7

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3f91d0;
/* rgb */ color: rgb(63, 145, 208);
/* oklch */ color: oklch(63.4% 0.124 244.9);

Tailwind

colors: {
  custom: {
    50: '#85b1de',
    500: '#3f91d0',
    950: '#000000',
  },
}

SCSS

$custom: #3f91d0;
$custom-light: #85b1de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91d0",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 208
  },
  "hsl": {
    "h": 206.069,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.63444,
    "c": 0.12372,
    "h": 244.9
  },
  "luminance": 0.25862
}

Semantic roles & 50–950 ramp

primary

#3F91D0

secondary

#D5B196

accent

#8944E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F91D0

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

Preview Lab → · Contrast checker → · Palette generator →