#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 |
|---|---|
| RGB | rgb(42, 131, 185) |
| HSL | hsl(203, 63%, 45%) |
| HSV | hsv(203, 77%, 73%) |
| CMYK | cmyk(77.3%, 29.2%, 0%, 27.5%) |
| CIE-LAB | lab(52.09, -7.30, -35.71) |
| CIE-LCH | lch(52.09, 36.45, 258.45°) |
| OKLab | oklab(58.33% -0.0577 -0.1011) |
| OKLCH | oklch(58.33% 0.116 240.3) |
| XYZ | xyz(17.8247, 20.2255, 48.8540) |
| Luminance | 0.2023 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 2.64
Steel Blue
#4682B4
ΔE00 3.02
Cerulean (survey)
#0485D1
ΔE00 3.21
Cool Blue
#4984B8
ΔE00 3.55
Nice Blue
#107AB0
ΔE00 3.64
Off Blue
#5684AE
ΔE00 5.01
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 |
|---|---|---|---|---|
| ##2A83B9 | 1.00 | 4.16 | 5.05 | 5.05 |
| #FFFFFF | 4.16 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
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