#2189BC#2189BC
#2189BC is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.7% C 0.118 H 236.0°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).
Color values
| HEX | #2189BC |
|---|---|
| RGB | rgb(33, 137, 188) |
| HSL | hsl(200, 70%, 43%) |
| HSV | hsv(200, 82%, 74%) |
| CMYK | cmyk(82.4%, 27.1%, 0%, 26.3%) |
| CIE-LAB | lab(53.86, -10.59, -34.67) |
| CIE-LCH | lch(53.86, 36.25, 253.01°) |
| OKLab | oklab(59.72% -0.066 -0.098) |
| OKLCH | oklch(59.72% 0.118 236) |
| XYZ | xyz(18.6463, 21.8432, 50.8006) |
| Luminance | 0.2185 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 3.61
Cerulean (survey)
#0485D1
ΔE00 4.81
Steel Blue
#4682B4
ΔE00 4.99
Cool Blue
#4984B8
ΔE00 5.22
Nice Blue
#107AB0
ΔE00 5.69
Cerulean
#007BA7
ΔE00 5.84
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#2189BC #BC5421
analogous
#21BCA1 #2189BC #213BBC
triadic
#2189BC #BC2189 #89BC21
tetradic
#2189BC #A121BC #BC5421 #3BBC21
square
#2189BC #A121BC #BC5421 #3BBC21
split-complementary
#2189BC #BC213B #BCA121
monochromatic
#0F3D54 #186388 #2189BC #3DA8DD #71C0E6
Accessibility & contrast
On white
3.91
#2189BC on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.37
#2189BC on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #2189BC
5.37:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##2189BC | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##2189BC | 1.00 | 3.91 | 5.37 | 5.37 |
| #FFFFFF | 3.91 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.37 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.37 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7089BE
Deuteranopia (green-blind)
#5C7ABB
Tritanopia (blue-blind)
#00969B
Achromatopsia (no color)
#818181
Design tokens & code
CSS
--color: #2189bc; /* rgb */ color: rgb(33, 137, 188); /* oklch */ color: oklch(59.7% 0.118 236.0);
Tailwind
colors: {
custom: {
50: '#77abd0',
500: '#2189bc',
950: '#000000',
},
}SCSS
$custom: #2189bc; $custom-light: #77abd0; $custom-dark: #000000;
JSON
{
"hex": "#2189bc",
"rgb": {
"r": 33,
"g": 137,
"b": 188
},
"hsl": {
"h": 199.742,
"s": 70.136,
"l": 43.333
},
"oklch": {
"l": 0.59725,
"c": 0.11819,
"h": 236
},
"luminance": 0.21845
}Semantic roles & 50–950 ramp
primary
#2189BC
secondary
#CD8C6C
accent
#753BED
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0A1014
muted
#7C7F82