#3B8EB0#3B8EB0

#3B8EB0 is a mid, moderate cyan. Relative luminance 0.234; OKLCH L 61.0% C 0.094 H 228.4°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX#3B8EB0
RGBrgb(59, 142, 176)
HSLhsl(197, 50%, 46%)
HSVhsv(197, 66%, 69%)
CMYKcmyk(66.5%, 19.3%, 0%, 31%)
CIE-LABlab(55.49, -14.21, -25.24)
CIE-LCHlch(55.49, 28.96, 240.61°)
OKLaboklab(61.03% -0.0627 -0.0706)
OKLCHoklch(61.03% 0.094 228.4)
XYZxyz(19.3100, 23.4083, 44.5665)
Luminance0.2341 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3B8EB0 #B05D3B
analogous
#3BB097 #3B8EB0 #3B53B0
triadic
#3B8EB0 #B03B8E #8EB03B
tetradic
#3B8EB0 #973BB0 #B05D3B #53B03B
square
#3B8EB0 #973BB0 #B05D3B #53B03B
split-complementary
#3B8EB0 #B03B53 #B0973B
monochromatic
#1C4454 #2C6982 #3B8EB0 #5FAAC9 #8DC3D9

Accessibility & contrast

On white

3.70
#3B8EB0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.68
#3B8EB0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B8EB0
5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3B8EB0#FFFFFF#000000##000000
##3B8EB01.003.705.685.68
#FFFFFF3.701.0021.0021.00
#0000005.6821.001.001.00
##0000005.6821.001.001.00

Color blindness preview

Protanopia (red-blind)
#7C8CB2
Deuteranopia (green-blind)
#6C80B0
Tritanopia (blue-blind)
#009899
Achromatopsia (no color)
#858585

Design tokens & code

CSS
--color: #3b8eb0;
/* rgb */ color: rgb(59, 142, 176);
/* oklch */ color: oklch(61.0% 0.094 228.4);
Tailwind
colors: {
  custom: {
    50: '#7eafc7',
    500: '#3b8eb0',
    950: '#000000',
  },
}
SCSS
$custom: #3b8eb0;
$custom-light: #7eafc7;
$custom-dark: #000000;
JSON
{
  "hex": "#3b8eb0",
  "rgb": {
    "r": 59,
    "g": 142,
    "b": 176
  },
  "hsl": {
    "h": 197.436,
    "s": 49.787,
    "l": 46.078
  },
  "oklch": {
    "l": 0.61034,
    "c": 0.09442,
    "h": 228.4
  },
  "luminance": 0.2341
}

Semantic roles & 50–950 ramp

primary
#3B8EB0
secondary
#C39683
accent
#774ED9
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B1013
muted
#7C7F82

Preview Lab

Preview with #3B8EB0

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

Preview Lab → · Contrast checker → · Palette generator →

#3B8EB0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva