#00C4FA
Closest named color: Deep Sky Blue (#00BFFF). oklch(76.5% 0.147 226.6), rgb(0, 196, 250).
Aa
Black text reads best on this color (10.27:1).
About this color
#00C4FA is a medium-light, vivid teal or cyan. In OKLCH its lightness is 76%, its chroma 0.147 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sky Blue (#00BFFF), ΔE 0.017 away. Black text reads best on it, at 10.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Deep Sky Blue (#00BFFF) |
| Black text | 10.27:1 |
| White text | 2.04:1 |
Values
| HEX | #00C4FA |
| RGB | rgb(0, 196, 250) |
| HSL | hsl(193, 100%, 49%) |
| OKLCH | oklch(76.5% 0.147 226.6) |
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 #00C4FA | 2.04:1 | Fails | Lc -43.5 | Non-text elements, placeholder text |
| Black text on #00C4FA | 10.27:1 | AAA | Lc 64.9 | Content text, not long reading |
| #00C4FA text on white | 2.04:1 | Fails | Lc 39.1 | Non-text elements, placeholder text |
| #00C4FA text on black | 10.27:1 | AAA | Lc -63.3 | 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
#CFF0FF
oklch(93.6% 0.04 227)
-
Step 200
200
#A5E4FF
oklch(88.6% 0.074 226.4)
-
Step 300
300 (this color)
#00C4FA
oklch(76.5% 0.147 226.6)
-
Step 400
400
#00B0E1
oklch(70.6% 0.136 226.7)
-
Step 500
500
#0097C2
oklch(63.1% 0.122 226.9)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
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)
#00C4FA 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) | #A7C0FD | 0.108 |
| Deuteranopia (no green cones) | #8BADF9 | 0.093 |
| Tritanopia (no blue cones) | #00D4D6 | 0.079 |
| Achromatopsia (no color) | #B5B5B5 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00C4FA
#00C4FA
oklch(76.5% 0.147 226.6)
- #FE925C
#FE925C
oklch(76.5% 0.148 46.3)
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 #00C4FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sky Blue #00BFFF ΔE 0.017
- Bright Sky Blue #02CCFE ΔE 0.022
- Vivid Sky Blue #4CC9F0 ΔE 0.033
- Lightblue #7BC8F6 ΔE 0.062
- Aqua Blue #02D8E9 ΔE 0.068
- Sky #82CAFC ΔE 0.071
- Dark Turquoise #00CED1 ΔE 0.074
- Light Sky Blue #87CEFA ΔE 0.080
Use #00C4FA 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.