#2A83B9#2A83B9

#2A83B9 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.116 H 240.3°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX#2A83B9
RGBrgb(42, 131, 185)
HSLhsl(203, 63%, 45%)
HSVhsv(203, 77%, 73%)
CMYKcmyk(77.3%, 29.2%, 0%, 27.5%)
CIE-LABlab(52.09, -7.30, -35.71)
CIE-LCHlch(52.09, 36.45, 258.45°)
OKLaboklab(58.33% -0.0577 -0.1011)
OKLCHoklch(58.33% 0.116 240.3)
XYZxyz(17.8247, 20.2255, 48.8540)
Luminance0.2023 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2A83B9 #B9602A
analogous
#2AB9A8 #2A83B9 #2A3CB9
triadic
#2A83B9 #B92A83 #83B92A
tetradic
#2A83B9 #A82AB9 #B9602A #3CB92A
square
#2A83B9 #A82AB9 #B9602A #3CB92A
split-complementary
#2A83B9 #B92A3C #B9A82A
monochromatic
#133C55 #1F6087 #2A83B9 #4AA1D6 #7CBBE1

Accessibility & contrast

On white

4.16
#2A83B9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.05
#2A83B9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2A83B9
5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2A83B9#FFFFFF#000000##000000
##2A83B91.004.165.055.05
#FFFFFF4.161.0021.0021.00
#0000005.0521.001.001.00
##0000005.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A84BB
Deuteranopia (green-blind)
#5676B8
Tritanopia (blue-blind)
#009196
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #2a83b9;
/* rgb */ color: rgb(42, 131, 185);
/* oklch */ color: oklch(58.3% 0.116 240.3);
Tailwind
colors: {
  custom: {
    50: '#79a6ce',
    500: '#2a83b9',
    950: '#000000',
  },
}
SCSS
$custom: #2a83b9;
$custom-light: #79a6ce;
$custom-dark: #000000;
JSON
{
  "hex": "#2a83b9",
  "rgb": {
    "r": 42,
    "g": 131,
    "b": 185
  },
  "hsl": {
    "h": 202.657,
    "s": 62.996,
    "l": 44.51
  },
  "oklch": {
    "l": 0.58327,
    "c": 0.11637,
    "h": 240.3
  },
  "luminance": 0.20228
}

Semantic roles & 50–950 ramp

primary
#2A83B9
secondary
#CA9575
accent
#8042E6
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0A0F13
muted
#7C7F82

Preview Lab

Preview with #2A83B9

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

Preview Lab → · Contrast checker → · Palette generator →

#2A83B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva