#2A83B3#2A83B3

#2A83B3 is a mid, moderate cyan. Relative luminance 0.200; OKLCH L 58.0% C 0.110 H 237.1°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX#2A83B3
RGBrgb(42, 131, 179)
HSLhsl(201, 62%, 43%)
HSVhsv(201, 77%, 70%)
CMYKcmyk(76.5%, 26.8%, 0%, 29.8%)
CIE-LABlab(51.81, -9.45, -32.70)
CIE-LCHlch(51.81, 34.04, 253.88°)
OKLaboklab(58.01% -0.0597 -0.0923)
OKLCHoklch(58.01% 0.11 237.1)
XYZxyz(17.2046, 19.9775, 45.5884)
Luminance0.1998 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2A83B3 #B35A2A
analogous
#2AB39E #2A83B3 #2A3EB3
triadic
#2A83B3 #B32A83 #83B32A
tetradic
#2A83B3 #9E2AB3 #B35A2A #3EB32A
square
#2A83B3 #9E2AB3 #B35A2A #3EB32A
split-complementary
#2A83B3 #B32A3E #B39E2A
monochromatic
#133A50 #1E5F81 #2A83B3 #46A2D4 #78BBDF

Accessibility & contrast

On white

4.20
#2A83B3 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.00
#2A83B3 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #2A83B3
5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2A83B3#FFFFFF#000000##000000
##2A83B31.004.205.005.00
#FFFFFF4.201.0021.0021.00
#0000005.0021.001.001.00
##0000005.0021.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C83B5
Deuteranopia (green-blind)
#5A76B2
Tritanopia (blue-blind)
#008F94
Achromatopsia (no color)
#7B7B7B

Design tokens & code

CSS
--color: #2a83b3;
/* rgb */ color: rgb(42, 131, 179);
/* oklch */ color: oklch(58.0% 0.110 237.1);
Tailwind
colors: {
  custom: {
    50: '#78a7ca',
    500: '#2a83b3',
    950: '#000000',
  },
}
SCSS
$custom: #2a83b3;
$custom-light: #78a7ca;
$custom-dark: #000000;
JSON
{
  "hex": "#2a83b3",
  "rgb": {
    "r": 42,
    "g": 131,
    "b": 179
  },
  "hsl": {
    "h": 201.022,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.58013,
    "c": 0.10994,
    "h": 237.1
  },
  "luminance": 0.1998
}

Semantic roles & 50–950 ramp

primary
#2A83B3
secondary
#C79072
accent
#7C43E5
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#0A0F13
muted
#7C7F82

Preview Lab

Preview with #2A83B3

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

Preview Lab → · Contrast checker → · Palette generator →

#2A83B3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva