#05D5E9
Closest named color: Aqua Blue (#02D8E9). oklch(79.8% 0.136 206.8), rgb(5, 213, 233).
Aa
Black text reads best on this color (11.70:1).
About this color
#05D5E9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 80%, its chroma 0.136 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Aqua Blue (#02D8E9), ΔE 0.008 away. Black text reads best on it, at 11.70:1.
| Hue family | Teals and cyans |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Aqua Blue (#02D8E9) |
| Black text | 11.70:1 |
| White text | 1.79:1 |
Values
| HEX | #05D5E9 |
| RGB | rgb(5, 213, 233) |
| HSL | hsl(185, 96%, 47%) |
| OKLCH | oklch(79.8% 0.136 206.8) |
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 #05D5E9 | 1.79:1 | Fails | Lc -36.5 | Non-text elements, placeholder text |
| Black text on #05D5E9 | 11.70:1 | AAA | Lc 71.3 | Content text, not long reading |
| #05D5E9 text on white | 1.79:1 | Fails | Lc 32.6 | Non-text elements, placeholder text |
| #05D5E9 text on black | 11.70:1 | AAA | Lc -70.1 | 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
#E8F9FC
oklch(97% 0.018 209.4)
-
Step 100
100
#CDF2F7
oklch(93.6% 0.039 206.5)
-
Step 200
200
#9CE8F2
oklch(88.5% 0.076 206.3)
-
Step 300
300 (this color)
#05D5E9
oklch(79.8% 0.136 206.8)
-
Step 400
400
#00B5C6
oklch(70.6% 0.121 206.7)
-
Step 500
500
#009BAA
oklch(63% 0.108 206.9)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#004B53
oklch(37.7% 0.065 207)
-
Step 950
950
#002D32
oklch(27.1% 0.046 206.3)
#05D5E9 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) | #C1CCEA | 0.132 |
| Deuteranopia (no green cones) | #A7B9E9 | 0.121 |
| Tritanopia (no blue cones) | #00DFDB | 0.040 |
| Achromatopsia (no color) | #C1C1C1 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05D5E9
#05D5E9
oklch(79.8% 0.136 206.8)
- #FF9F95
#FF9F95
oklch(79.7% 0.116 26.4)
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 #05D5E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Blue #02D8E9 ΔE 0.008
- Dark Turquoise #00CED1 ΔE 0.036
- Medium Turquoise #48D1CC ΔE 0.041
- Vivid Sky Blue #4CC9F0 ΔE 0.041
- Bright Sky Blue #02CCFE ΔE 0.045
- Turquoise #40E0D0 ΔE 0.056
- Sky Blue #87CEEB ΔE 0.067
- Lightblue #7BC8F6 ΔE 0.069
Use #05D5E9 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.