#289FBD#289FBD
#289FBD is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.3% C 0.108 H 219.4°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).
Color values
| HEX | #289FBD |
|---|---|
| RGB | rgb(40, 159, 189) |
| HSL | hsl(192, 65%, 45%) |
| HSV | hsv(192, 79%, 74%) |
| CMYK | cmyk(78.8%, 15.9%, 0%, 25.9%) |
| CIE-LAB | lab(60.71, -21.55, -24.60) |
| CIE-LCH | lch(60.71, 32.71, 228.79°) |
| OKLab | oklab(65.26% -0.0838 -0.0688) |
| OKLCH | oklch(65.26% 0.108 219.4) |
| XYZ | xyz(22.4546, 28.9187, 52.5327) |
| Luminance | 0.2892 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 7.09
Teal Blue
#01889F
ΔE00 8.35
Greyblue
#77A1B5
ΔE00 8.53
Cadetblue
#5F9EA0
ΔE00 9.84
Dirty Blue
#3F829D
ΔE00 10.08
Bluegrey
#85A3B2
ΔE00 11.34
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#289FBD #BD4628
analogous
#28BD91 #289FBD #2854BD
triadic
#289FBD #BD289F #9FBD28
tetradic
#289FBD #9128BD #BD4628 #54BD28
square
#289FBD #9128BD #BD4628 #54BD28
split-complementary
#289FBD #BD2854 #BD9128
monochromatic
#134A58 #1D758A #289FBD #4ABCD9 #7CCFE3
Accessibility & contrast
On white
3.10
#289FBD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.78
#289FBD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #289FBD
6.78:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##289FBD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##289FBD | 1.00 | 3.10 | 6.78 | 6.78 |
| #FFFFFF | 3.10 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.78 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.78 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8C9BBF
Deuteranopia (green-blind)
#798CBD
Tritanopia (blue-blind)
#00A9A9
Achromatopsia (no color)
#929292
Design tokens & code
CSS
--color: #289fbd; /* rgb */ color: rgb(40, 159, 189); /* oklch */ color: oklch(65.3% 0.108 219.4);
Tailwind
colors: {
custom: {
50: '#7bbbd1',
500: '#289fbd',
950: '#000000',
},
}SCSS
$custom: #289fbd; $custom-light: #7bbbd1; $custom-dark: #000000;
JSON
{
"hex": "#289fbd",
"rgb": {
"r": 40,
"g": 159,
"b": 189
},
"hsl": {
"h": 192.081,
"s": 65.066,
"l": 44.902
},
"oklch": {
"l": 0.65256,
"c": 0.10847,
"h": 219.4
},
"luminance": 0.28922
}Semantic roles & 50–950 ramp
primary
#289FBD
secondary
#CB8775
accent
#6240E8
background
#F8FBFC
surface
#EFF6F9
border
#CAD0D2
text
#0B1214
muted
#7C8182