#00C3FF
Closest named color: Deep Sky Blue (#00BFFF). oklch(76.5% 0.151 229.4), rgb(0, 195, 255).
Aa
Black text reads best on this color (10.25:1).
About this color
#00C3FF is a medium-light, vivid teal or cyan. In OKLCH its lightness is 76%, its chroma 0.151 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.011 away. Black text reads best on it, at 10.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 10.25:1 |
| White text | 2.04:1 |
Values
| HEX | #00C3FF |
| RGB | rgb(0, 195, 255) |
| HSL | hsl(194, 100%, 50%) |
| OKLCH | oklch(76.5% 0.151 229.4) |
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 #00C3FF | 2.04:1 | Fails | Lc -43.7 | Non-text elements, placeholder text |
| Black text on #00C3FF | 10.25:1 | AAA | Lc 64.7 | Content text, not long reading |
| #00C3FF text on white | 2.04:1 | Fails | Lc 39.2 | Non-text elements, placeholder text |
| #00C3FF text on black | 10.25:1 | AAA | Lc -63.2 | Content text, not long reading |
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 300.
-
Step 50
50
#EAF8FF
oklch(97.1% 0.018 229)
-
Step 100
100
#D1EFFF
oklch(93.5% 0.038 231)
-
Step 200
200
#A9E3FF
oklch(88.6% 0.071 229.3)
-
Step 300
300 (this color)
#00C3FF
oklch(76.5% 0.151 229.4)
-
Step 400
400
#00AFE6
oklch(70.6% 0.14 229.8)
-
Step 500
500
#0096C6
oklch(63% 0.126 229.9)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#00C3FF 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) | #A4C0FF | 0.104 |
| Deuteranopia (no green cones) | #87ACFE | 0.089 |
| Tritanopia (no blue cones) | #00D4D7 | 0.086 |
| Achromatopsia (no color) | #B5B5B5 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00C3FF
#00C3FF
oklch(76.5% 0.151 229.4)
- #FE9353
#FE9353
oklch(76.5% 0.151 49.8)
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 #00C3FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.011
- Bright Sky Blue #02CCFE ΔE 0.026
- Vivid Sky Blue #4CC9F0 ΔE 0.039
- Lightblue #7BC8F6 ΔE 0.064
- Sky #82CAFC ΔE 0.072
- Aqua Blue #02D8E9 ΔE 0.075
- Carolina Blue #8AB8FE ΔE 0.077
- Light Sky Blue #87CEFA ΔE 0.081
Use #00C3FF 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.