#3B91D2#3B91D2

#3B91D2 is a light, vivid cyan. Relative luminance 0.258; OKLCH L 63.4% C 0.128 H 244.8°. Best body text is #000000 at 6.17:1 contrast (WCAG AA passes).

Color values

HEX#3B91D2
RGBrgb(59, 145, 210)
HSLhsl(206, 63%, 53%)
HSVhsv(206, 72%, 82%)
CMYKcmyk(71.9%, 31%, 0%, 17.6%)
CIE-LABlab(57.88, -4.36, -40.77)
CIE-LCHlch(57.88, 41.01, 263.90°)
OKLaboklab(63.42% -0.0543 -0.1155)
OKLCHoklch(63.42% 0.128 244.8)
XYZxyz(23.5574, 25.8311, 64.7046)
Luminance0.2583 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3B91D2 #D27C3B
analogous
#3BD2C8 #3B91D2 #3B45D2
triadic
#3B91D2 #D23B91 #91D23B
tetradic
#3B91D2 #C83BD2 #D27C3B #45D23B
square
#3B91D2 #C83BD2 #D27C3B #45D23B
split-complementary
#3B91D2 #D23B45 #D2C83B
monochromatic
#1B5077 #2771A9 #3B91D2 #6DADDD #9FC9E9

Accessibility & contrast

On white

3.41
#3B91D2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.17
#3B91D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B91D2
6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3B91D2#FFFFFF#000000##000000
##3B91D21.003.416.176.17
#FFFFFF3.411.0021.0021.00
#0000006.1721.001.001.00
##0000006.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#7393D5
Deuteranopia (green-blind)
#5E85D1
Tritanopia (blue-blind)
#00A1A8
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #3b91d2;
/* rgb */ color: rgb(59, 145, 210);
/* oklch */ color: oklch(63.4% 0.128 244.8);
Tailwind
colors: {
  custom: {
    50: '#83b1e0',
    500: '#3b91d2',
    950: '#000000',
  },
}
SCSS
$custom: #3b91d2;
$custom-light: #83b1e0;
$custom-dark: #000000;
JSON
{
  "hex": "#3b91d2",
  "rgb": {
    "r": 59,
    "g": 145,
    "b": 210
  },
  "hsl": {
    "h": 205.828,
    "s": 62.656,
    "l": 52.745
  },
  "oklch": {
    "l": 0.6342,
    "c": 0.1276,
    "h": 244.8
  },
  "luminance": 0.25834
}

Semantic roles & 50–950 ramp

primary
#3B91D2
secondary
#D5B094
accent
#8942E6
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3B91D2

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

Preview Lab → · Contrast checker → · Palette generator →

#3B91D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva