#43D3B5
Closest named color: Medium Aquamarine (#66CDAA). oklch(78.3% 0.129 175.8), rgb(67, 211, 181).
Aa
Black text reads best on this color (11.22:1).
About this color
#43D3B5 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 78%, its chroma 0.129 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.025 away. Black text reads best on it, at 11.22:1.
| Hue family | Teals and cyans |
| Lightness | light (78%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.22:1 |
| White text | 1.87:1 |
Values
| HEX | #43D3B5 |
| RGB | rgb(67, 211, 181) |
| HSL | hsl(168, 62%, 55%) |
| OKLCH | oklch(78.3% 0.129 175.8) |
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 #43D3B5 | 1.87:1 | Fails | Lc -39.2 | Non-text elements, placeholder text |
| Black text on #43D3B5 | 11.22:1 | AAA | Lc 68.9 | Content text, not long reading |
| #43D3B5 text on white | 1.87:1 | Fails | Lc 35.0 | Non-text elements, placeholder text |
| #43D3B5 text on black | 11.22:1 | AAA | Lc -67.5 | 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
#EAF9F5
oklch(97% 0.017 178.3)
-
Step 100
100
#D1F3E9
oklch(93.7% 0.038 175.8)
-
Step 200
200
#A7E9D7
oklch(88.5% 0.071 175.8)
-
Step 300
300 (this color)
#43D3B5
oklch(78.3% 0.129 175.8)
-
Step 400
400
#00BB9D
oklch(70.7% 0.133 175.7)
-
Step 500
500
#00A086
oklch(63% 0.118 175.6)
-
Step 600
600
#008771
oklch(55.7% 0.104 175.8)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#004D40
oklch(37.6% 0.07 176.4)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#43D3B5 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) | #CBC6B4 | 0.134 |
| Deuteranopia (no green cones) | #B7B7B7 | 0.129 |
| Tritanopia (no blue cones) | #00D6CA | 0.029 |
| Achromatopsia (no color) | #BDBDBD | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43D3B5
#43D3B5
oklch(78.3% 0.129 175.8)
- #F994BB
#F994BB
oklch(78.3% 0.129 355.9)
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 #43D3B5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.025
- Medium Turquoise #48D1CC ΔE 0.036
- Seafoam Blue #78D1B6 ΔE 0.037
- Emerald #06D6A0 ΔE 0.039
- Turquoise #40E0D0 ΔE 0.044
- Pale Teal #82CBB2 ΔE 0.048
- Dark Turquoise #00CED1 ΔE 0.048
- Aqua Marine #2EE8BB ΔE 0.057
Use #43D3B5 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.