#2ACEB1
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.5% 0.134 177), rgb(42, 206, 177).
Aa
Black text reads best on this color (10.56:1).
About this color
#2ACEB1 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 77%, its chroma 0.134 and its hue 177°. Its hue sits on the cool side of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.032 away. Black text reads best on it, at 10.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.56:1 |
| White text | 1.98:1 |
Values
| HEX | #2ACEB1 |
| RGB | rgb(42, 206, 177) |
| HSL | hsl(169, 66%, 49%) |
| OKLCH | oklch(76.5% 0.134 177) |
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 #2ACEB1 | 1.98:1 | Fails | Lc -42.3 | Non-text elements, placeholder text |
| Black text on #2ACEB1 | 10.56:1 | AAA | Lc 66.0 | Content text, not long reading |
| #2ACEB1 text on white | 1.98:1 | Fails | Lc 37.9 | Non-text elements, placeholder text |
| #2ACEB1 text on black | 10.56:1 | AAA | Lc -64.5 | 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
#EAFAF5
oklch(97.2% 0.018 175.3)
-
Step 100
100
#D0F3E9
oklch(93.6% 0.039 176.3)
-
Step 200
200
#A3EAD8
oklch(88.5% 0.075 176.9)
-
Step 300
300 (this color)
#2ACEB1
oklch(76.5% 0.134 177)
-
Step 400
400
#00BB9F
oklch(70.8% 0.132 176.8)
-
Step 500
500
#00A088
oklch(63.1% 0.117 177)
-
Step 600
600
#008772
oklch(55.7% 0.104 176.6)
-
Step 700
700
#007160
oklch(49.1% 0.091 177.4)
-
Step 800
800
#005D4E
oklch(42.8% 0.079 176.7)
-
Step 900
900
#004D41
oklch(37.6% 0.069 177.7)
-
Step 950
950
#002E26
oklch(26.9% 0.05 177.5)
#2ACEB1 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) | #C6C1B0 | 0.141 |
| Deuteranopia (no green cones) | #B1B1B3 | 0.135 |
| Tritanopia (no blue cones) | #00D1C5 | 0.027 |
| Achromatopsia (no color) | #B8B8B8 | 0.135 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2ACEB1
#2ACEB1
oklch(76.5% 0.134 177)
- #F68DB4
#F68DB4
oklch(76.6% 0.134 357)
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 #2ACEB1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.032
- Emerald #06D6A0 ΔE 0.039
- Medium Turquoise #48D1CC ΔE 0.042
- Dark Turquoise #00CED1 ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.051
- Greenblue #23C48B ΔE 0.053
- Topaz #13BBAF ΔE 0.056
- Pale Teal #82CBB2 ΔE 0.058
Use #2ACEB1 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.