#3DC7DD
Closest named color: Vivid Sky Blue (#4CC9F0). oklch(76.6% 0.118 210.5), rgb(61, 199, 221).
Aa
Black text reads best on this color (10.41:1).
About this color
#3DC7DD is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.118 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Vivid Sky Blue (#4CC9F0), ΔE 0.030 away. Black text reads best on it, at 10.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Vivid Sky Blue (#4CC9F0) |
| Black text | 10.41:1 |
| White text | 2.01:1 |
Values
| HEX | #3DC7DD |
| RGB | rgb(61, 199, 221) |
| HSL | hsl(188, 70%, 55%) |
| OKLCH | oklch(76.6% 0.118 210.5) |
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 #3DC7DD | 2.01:1 | Fails | Lc -43.2 | Non-text elements, placeholder text |
| Black text on #3DC7DD | 10.41:1 | AAA | Lc 65.2 | Content text, not long reading |
| #3DC7DD text on white | 2.01:1 | Fails | Lc 38.8 | Non-text elements, placeholder text |
| #3DC7DD text on black | 10.41:1 | AAA | Lc -63.6 | 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
#EAF9FB
oklch(97.2% 0.016 206.4)
-
Step 100
100
#D1F1F7
oklch(93.7% 0.034 210.2)
-
Step 200
200
#A6E6F1
oklch(88.6% 0.066 209.3)
-
Step 300
300 (this color)
#3DC7DD
oklch(76.6% 0.118 210.5)
-
Step 400
400
#00B4CB
oklch(70.6% 0.122 210.8)
-
Step 500
500
#009BAE
oklch(63.2% 0.109 210)
-
Step 600
600
#008293
oklch(55.6% 0.096 210.7)
-
Step 700
700
#006D7C
oklch(49% 0.085 211.2)
-
Step 800
800
#005A66
oklch(42.9% 0.074 210.4)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#002C33
oklch(26.9% 0.047 211.1)
#3DC7DD 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) | #B5C0DE | 0.111 |
| Deuteranopia (no green cones) | #9EB0DD | 0.100 |
| Tritanopia (no blue cones) | #00D1CE | 0.043 |
| Achromatopsia (no color) | #B6B6B6 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3DC7DD
#3DC7DD
oklch(76.6% 0.118 210.5)
- #F59685
#F59685
oklch(76.7% 0.118 30.9)
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 #3DC7DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vivid Sky Blue #4CC9F0 ΔE 0.030
- Dark Turquoise #00CED1 ΔE 0.033
- Medium Turquoise #48D1CC ΔE 0.044
- Aqua Blue #02D8E9 ΔE 0.045
- Bright Sky Blue #02CCFE ΔE 0.046
- Lightblue #7BC8F6 ΔE 0.061
- Deep Sky Blue #00BFFF ΔE 0.062
- Sky Blue #87CEEB ΔE 0.066
Use #3DC7DD 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.