#43C8A3
Closest named color: Medium Aquamarine (#66CDAA). oklch(75.1% 0.127 170.7), rgb(67, 200, 163).
Aa
Black text reads best on this color (10.02:1).
About this color
#43C8A3 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 75%, its chroma 0.127 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.031 away. Black text reads best on it, at 10.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (75%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.02:1 |
| White text | 2.09:1 |
Values
| HEX | #43C8A3 |
| RGB | rgb(67, 200, 163) |
| HSL | hsl(163, 55%, 52%) |
| OKLCH | oklch(75.1% 0.127 170.7) |
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 #43C8A3 | 2.09:1 | Fails | Lc -45.2 | Large or bold text, headings |
| Black text on #43C8A3 | 10.02:1 | AAA | Lc 63.3 | Content text, not long reading |
| #43C8A3 text on white | 2.09:1 | Fails | Lc 40.6 | Non-text elements, placeholder text |
| #43C8A3 text on black | 10.02:1 | AAA | Lc -61.7 | 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 400.
-
Step 50
50
#EFF8F4
oklch(97.1% 0.011 167.8)
-
Step 100
100
#DCEFE8
oklch(93.6% 0.022 171.8)
-
Step 200
200
#BDE3D5
oklch(88.5% 0.044 170.9)
-
Step 300
300
#8BD2B9
oklch(81% 0.08 170.1)
-
Step 400
400 (this color)
#43C8A3
oklch(75.1% 0.127 170.7)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876A
oklch(55.5% 0.109 170.8)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D48
oklch(42.6% 0.084 170.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#002F23
oklch(27.2% 0.053 170.5)
#43C8A3 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) | #C2BBA1 | 0.130 |
| Deuteranopia (no green cones) | #B0AEA6 | 0.125 |
| Tritanopia (no blue cones) | #00C9BD | 0.037 |
| Achromatopsia (no color) | #B3B3B3 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43C8A3
#43C8A3
oklch(75.1% 0.127 170.7)
- #EB8BB9
#EB8BB9
oklch(75.1% 0.128 350.5)
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 #43C8A3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.031
- Greenblue #23C48B ΔE 0.038
- Emerald #06D6A0 ΔE 0.043
- Green Blue #01C08D ΔE 0.043
- Topaz #13BBAF ΔE 0.051
- Seafoam Blue #78D1B6 ΔE 0.056
- Soft Green #6FC276 ΔE 0.058
- Pale Teal #82CBB2 ΔE 0.058
Use #43C8A3 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.