#5EC9DE
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.1% 0.102 212.4), rgb(94, 201, 222).
Aa
Black text reads best on this color (10.88:1).
About this color
#5EC9DE is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.102 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.027 away. Black text reads best on it, at 10.88:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.88:1 |
| White text | 1.92:1 |
Values
| HEX | #5EC9DE |
| RGB | rgb(94, 201, 222) |
| HSL | hsl(190, 66%, 62%) |
| OKLCH | oklch(78.1% 0.102 212.4) |
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 #5EC9DE | 1.92:1 | Fails | Lc -41.0 | Non-text elements, placeholder text |
| Black text on #5EC9DE | 10.88:1 | AAA | Lc 67.2 | Content text, not long reading |
| #5EC9DE text on white | 1.92:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #5EC9DE text on black | 10.88:1 | AAA | Lc -65.8 | 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
#ECF8FB
oklch(97.1% 0.013 214.4)
-
Step 100
100
#D5F0F6
oklch(93.7% 0.029 212.6)
-
Step 200
200
#AEE4EF
oklch(88.5% 0.057 211.5)
-
Step 300
300 (this color)
#5EC9DE
oklch(78.1% 0.102 212.4)
-
Step 400
400
#00B4CD
oklch(70.7% 0.123 212.1)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#5EC9DE 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) | #B8C3DF | 0.094 |
| Deuteranopia (no green cones) | #A5B4DE | 0.087 |
| Tritanopia (no blue cones) | #00D2CF | 0.051 |
| Achromatopsia (no color) | #BBBBBB | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5EC9DE
#5EC9DE
oklch(78.1% 0.102 212.4)
- #F29F8E
#F29F8E
oklch(78.1% 0.103 32.1)
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 #5EC9DE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.027
- Medium Turquoise #48D1CC ΔE 0.042
- Dark Turquoise #00CED1 ΔE 0.044
- Sky Blue #87CEEB ΔE 0.045
- Aqua Blue #02D8E9 ΔE 0.045
- Lightblue #7BC8F6 ΔE 0.046
- Bright Sky Blue #02CCFE ΔE 0.051
- Light Cornflower Blue #98C1D9 ΔE 0.055
Use #5EC9DE 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.