#03E0F8
Closest named color: Aqua Blue (#02D8E9). oklch(83% 0.143 208.5), rgb(3, 224, 248).
Aa
Black text reads best on this color (13.02:1).
About this color
#03E0F8 is a light, vivid teal or cyan. In OKLCH its lightness is 83%, its chroma 0.143 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.027 away. Black text reads best on it, at 13.02:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 13.02:1 |
| White text | 1.61:1 |
Values
| HEX | #03E0F8 |
| RGB | rgb(3, 224, 248) |
| HSL | hsl(186, 98%, 49%) |
| OKLCH | oklch(83% 0.143 208.5) |
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 #03E0F8 | 1.61:1 | Fails | Lc -30.3 | Non-text elements, placeholder text |
| Black text on #03E0F8 | 13.02:1 | AAA | Lc 77.0 | Fine for body text |
| #03E0F8 text on white | 1.61:1 | Fails | Lc 26.8 | Dividers and decoration only |
| #03E0F8 text on black | 13.02:1 | AAA | Lc -76.2 | Fine for body 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 300.
-
Step 50
50
#E8F9FC
oklch(97% 0.018 209.4)
-
Step 100
100
#CBF2F9
oklch(93.6% 0.041 209.7)
-
Step 200
200
#99E8F5
oklch(88.4% 0.079 208.9)
-
Step 300
300 (this color)
#03E0F8
oklch(83% 0.143 208.5)
-
Step 400
400
#00B5C9
oklch(70.8% 0.122 208.7)
-
Step 500
500
#009BAC
oklch(63.1% 0.109 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#002C32
oklch(26.8% 0.046 208.8)
#03E0F8 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) | #CAD7F9 | 0.135 |
| Deuteranopia (no green cones) | #AFC3F8 | 0.124 |
| Tritanopia (no blue cones) | #00EBE7 | 0.045 |
| Achromatopsia (no color) | #CCCCCC | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03E0F8
#03E0F8
oklch(83% 0.143 208.5)
- #FFB0A4
#FFB0A4
oklch(83% 0.095 28.8)
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 #03E0F8, closest first.
No curated palette has a color within ΔE 0.04 of #03E0F8.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.027
- Turquoise #40E0D0 ΔE 0.057
- Robin's Egg #6DEDFD ΔE 0.057
- Bright Sky Blue #02CCFE ΔE 0.059
- Vivid Sky Blue #4CC9F0 ΔE 0.061
- Medium Turquoise #48D1CC ΔE 0.063
- Bright Light Blue #26F7FD ΔE 0.064
- Dark Turquoise #00CED1 ΔE 0.065
Use #03E0F8 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.