#0080CB
Closest named color: Water Blue (#0E87CC). oklch(58% 0.147 245.4), rgb(0, 128, 203).
Aa
Black text reads best on this color (4.95:1).
About this color
#0080CB is a medium-dark, vivid blue. In OKLCH its lightness is 58%, its chroma 0.147 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.020 away. Black text reads best on it, at 4.95:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 4.95:1 |
| White text | 4.24:1 |
Values
| HEX | #0080CB |
| RGB | rgb(0, 128, 203) |
| HSL | hsl(202, 100%, 40%) |
| OKLCH | oklch(58% 0.147 245.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0080CB | 4.24:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #0080CB | 4.95:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #0080CB text on white | 4.24:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #0080CB text on black | 4.95:1 | AA | Lc -33.1 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300
#9DC6E9
oklch(80.9% 0.066 244.5)
-
Step 400
400
#65A7DF
oklch(70.7% 0.107 245.7)
-
Step 500
500
#3390D6
oklch(63.2% 0.136 245.4)
-
Step 600
600 (this color)
#0080CB
oklch(58% 0.147 245.4)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900
#0B456D
oklch(37.7% 0.088 245.2)
-
Step 950
950
#0A2940
oklch(27.1% 0.056 244.7)
#0080CB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5B84CE | 0.058 |
| Deuteranopia (no green cones) | #3F74CA | 0.039 |
| Tritanopia (no blue cones) | #00929C | 0.101 |
| Achromatopsia (no color) | #7B7B7B | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0080CB
#0080CB
oklch(58% 0.147 245.4)
- #AD6800
#AD6800
oklch(58.1% 0.129 65.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0080CB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.020
- Windows Blue #3778BF ΔE 0.030
- Nice Blue #107AB0 ΔE 0.042
- Steel Blue #4682B4 ΔE 0.049
- Cool Blue #4984B8 ΔE 0.049
- Blue NCS #118AB2 ΔE 0.054
- Flat Blue #3C73A8 ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.064
Use #0080CB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.