#3D91BC#3D91BC

#3D91BC is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.4% C 0.103 H 234.2°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX#3D91BC
RGBrgb(61, 145, 188)
HSLhsl(200, 51%, 49%)
HSVhsv(200, 68%, 74%)
CMYKcmyk(67.6%, 22.9%, 0%, 26.3%)
CIE-LABlab(56.95, -11.58, -29.80)
CIE-LCHlch(56.95, 31.97, 248.77°)
OKLaboklab(62.38% -0.0603 -0.0837)
OKLCHoklch(62.38% 0.103 234.2)
XYZxyz(21.1234, 24.8715, 51.2546)
Luminance0.2487 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3D91BC #BC683D
analogous
#3DBCA8 #3D91BC #3D52BC
triadic
#3D91BC #BC3D91 #91BC3D
tetradic
#3D91BC #A83DBC #BC683D #52BC3D
square
#3D91BC #A83DBC #BC683D #52BC3D
split-complementary
#3D91BC #BC3D52 #BCA83D
monochromatic
#1F4A60 #2E6D8E #3D91BC #68ACCE #96C5DD

Accessibility & contrast

On white

3.51
#3D91BC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.97
#3D91BC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D91BC
5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3D91BC#FFFFFF#000000##000000
##3D91BC1.003.515.975.97
#FFFFFF3.511.0021.0021.00
#0000005.9721.001.001.00
##0000005.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#7C90BE
Deuteranopia (green-blind)
#6B83BB
Tritanopia (blue-blind)
#009C9F
Achromatopsia (no color)
#898989

Design tokens & code

CSS
--color: #3d91bc;
/* rgb */ color: rgb(61, 145, 188);
/* oklch */ color: oklch(62.4% 0.103 234.2);
Tailwind
colors: {
  custom: {
    50: '#81b1d0',
    500: '#3d91bc',
    950: '#000000',
  },
}
SCSS
$custom: #3d91bc;
$custom-light: #81b1d0;
$custom-dark: #000000;
JSON
{
  "hex": "#3d91bc",
  "rgb": {
    "r": 61,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 200.315,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.62378,
    "c": 0.10312,
    "h": 234.2
  },
  "luminance": 0.24874
}

Semantic roles & 50–950 ramp

primary
#3D91BC
secondary
#C9A18C
accent
#7D4DDA
background
#F8FAFC
surface
#F0F5F9
border
#CBCFD2
text
#0B1014
muted
#7C7F82

Preview Lab

Preview with #3D91BC

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

Preview Lab → · Contrast checker → · Palette generator →

#3D91BC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva