#5EC9DF
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(78.1% 0.103 213.1), rgb(94, 201, 223).
Aa
Black text reads best on this color (10.89:1).
About this color
#5EC9DF is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.103 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.026 away. Black text reads best on it, at 10.89:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.89:1 |
| White text | 1.92:1 |
Values
| HEX | #5EC9DF |
| RGB | rgb(94, 201, 223) |
| HSL | hsl(190, 67%, 62%) |
| OKLCH | oklch(78.1% 0.103 213.1) |
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 #5EC9DF | 1.92:1 | Fails | Lc -41.0 | Non-text elements, placeholder text |
| Black text on #5EC9DF | 10.89:1 | AAA | Lc 67.2 | Content text, not long reading |
| #5EC9DF text on white | 1.92:1 | Fails | Lc 36.7 | Non-text elements, placeholder text |
| #5EC9DF text on black | 10.89:1 | 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
#D4F0F6
oklch(93.7% 0.03 212)
-
Step 200
200
#AEE4F0
oklch(88.6% 0.058 212.8)
-
Step 300
300 (this color)
#5EC9DF
oklch(78.1% 0.103 213.1)
-
Step 400
400
#00B4CE
oklch(70.7% 0.124 212.8)
-
Step 500
500
#009AB1
oklch(63% 0.11 213.1)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7E
oklch(49.1% 0.086 213.3)
-
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)
#5EC9DF 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) | #B8C3E0 | 0.094 |
| Deuteranopia (no green cones) | #A5B4DF | 0.086 |
| Tritanopia (no blue cones) | #00D2D0 | 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°).
- #5EC9DF
#5EC9DF
oklch(78.1% 0.103 213.1)
- #F29F8D
#F29F8D
oklch(78.1% 0.103 32.8)
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 #5EC9DF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.026
- Medium Turquoise #48D1CC ΔE 0.043
- Sky Blue #87CEEB ΔE 0.044
- Lightblue #7BC8F6 ΔE 0.045
- Dark Turquoise #00CED1 ΔE 0.045
- Aqua Blue #02D8E9 ΔE 0.045
- Bright Sky Blue #02CCFE ΔE 0.050
- Light Cornflower Blue #98C1D9 ΔE 0.055
Use #5EC9DF 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.