#0CB8E9
Closest named color: Deep Sky Blue (#00BFFF). oklch(72.9% 0.138 225.9), rgb(12, 184, 233).
Aa
Black text reads best on this color (9.04:1).
About this color
#0CB8E9 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.138 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.034 away. Black text reads best on it, at 9.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 9.04:1 |
| White text | 2.32:1 |
Values
| HEX | #0CB8E9 |
| RGB | rgb(12, 184, 233) |
| HSL | hsl(193, 90%, 48%) |
| OKLCH | oklch(72.9% 0.138 225.9) |
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 #0CB8E9 | 2.32:1 | Fails | Lc -50.0 | Large or bold text, headings |
| Black text on #0CB8E9 | 9.04:1 | AAA | Lc 58.8 | Large or bold text, headings |
| #0CB8E9 text on white | 2.32:1 | Fails | Lc 45.1 | Large or bold text, headings |
| #0CB8E9 text on black | 9.04:1 | AAA | Lc -57.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF7FB
oklch(97.1% 0.011 226)
-
Step 100
100
#D9EEF7
oklch(93.6% 0.025 225.3)
-
Step 200
200
#B9E0F2
oklch(88.5% 0.048 227.6)
-
Step 300
300
#81CDEB
oklch(81% 0.086 225.1)
-
Step 400
400 (this color)
#0CB8E9
oklch(72.9% 0.138 225.9)
-
Step 500
500
#0097C1
oklch(63% 0.121 226.4)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#002B3A
oklch(27% 0.052 227.2)
#0CB8E9 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) | #9DB4EB | 0.102 |
| Deuteranopia (no green cones) | #83A2E8 | 0.089 |
| Tritanopia (no blue cones) | #00C6C8 | 0.072 |
| Achromatopsia (no color) | #AAAAAA | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0CB8E9
#0CB8E9
oklch(72.9% 0.138 225.9)
- #ED8959
#ED8959
oklch(72.8% 0.138 45.5)
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 #0CB8E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.034
- Turquoise Blue #06B1C4 ΔE 0.055
- Vivid Sky Blue #4CC9F0 ΔE 0.056
- Bright Sky Blue #02CCFE ΔE 0.057
- Dark Turquoise #00CED1 ΔE 0.081
- Lightblue #7BC8F6 ΔE 0.083
- Carolina Blue #8AB8FE ΔE 0.089
- Topaz #13BBAF ΔE 0.090
Use #0CB8E9 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.