#2180AF#2180AF
#2180AF is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 56.9% C 0.111 H 235.9°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).
Color values
| HEX | #2180AF |
|---|---|
| RGB | rgb(33, 128, 175) |
| HSL | hsl(200, 68%, 41%) |
| HSV | hsv(200, 81%, 69%) |
| CMYK | cmyk(81.1%, 26.9%, 0%, 31.4%) |
| CIE-LAB | lab(50.52, -10.17, -32.44) |
| CIE-LCH | lch(50.52, 33.99, 252.60°) |
| OKLab | oklab(56.87% -0.0621 -0.0916) |
| OKLCH | oklch(56.87% 0.111 235.9) |
| XYZ | xyz(16.0811, 18.8548, 43.3409) |
| Luminance | 0.1886 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cerulean
#007BA7
ΔE00 2.71
Nice Blue
#107AB0
ΔE00 2.75
Steel Blue
#4682B4
ΔE00 4.67
Water Blue
#0E87CC
ΔE00 4.99
Cool Blue
#4984B8
ΔE00 5.45
Dirty Blue
#3F829D
ΔE00 5.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2180AF #AF5021
analogous
#21AF97 #2180AF #2139AF
triadic
#2180AF #AF2180 #80AF21
tetradic
#2180AF #9721AF #AF5021 #39AF21
square
#2180AF #9721AF #AF5021 #39AF21
split-complementary
#2180AF #AF2139 #AF9721
monochromatic
#0E3548 #175A7C #2180AF #34A2D9 #68BAE3
Accessibility & contrast
On white
4.40
#2180AF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.77
#2180AF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #2180AF
4.77:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2180AF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##2180AF | 1.00 | 4.40 | 4.77 | 4.77 |
| #FFFFFF | 4.40 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.77 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.77 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#697FB1
Deuteranopia (green-blind)
#5672AE
Tritanopia (blue-blind)
#008C90
Achromatopsia (no color)
#787878
Design tokens & code
CSS
--color: #2180af; /* rgb */ color: rgb(33, 128, 175); /* oklch */ color: oklch(56.9% 0.111 235.9);
Tailwind
colors: {
custom: {
50: '#74a4c7',
500: '#2180af',
950: '#000000',
},
}SCSS
$custom: #2180af; $custom-light: #74a4c7; $custom-dark: #000000;
JSON
{
"hex": "#2180af",
"rgb": {
"r": 33,
"g": 128,
"b": 175
},
"hsl": {
"h": 199.859,
"s": 68.269,
"l": 40.784
},
"oklch": {
"l": 0.56867,
"c": 0.11072,
"h": 235.9
},
"luminance": 0.18857
}Semantic roles & 50–950 ramp
primary
#2180AF
secondary
#C88564
accent
#763DEB
background
#F7FAFC
surface
#EEF4F8
border
#C9CED1
text
#0A0F13
muted
#7C7F82