#5BD5AA
Closest named color: Medium Aquamarine (#66CDAA). oklch(79.2% 0.127 167), rgb(91, 213, 170).
Aa
Black text reads best on this color (11.54:1).
About this color
#5BD5AA is a light, moderately saturated green. In OKLCH its lightness is 79%, its chroma 0.127 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.023 away. Black text reads best on it, at 11.54:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | moderately saturated (0.127) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 11.54:1 |
| White text | 1.81:1 |
Values
| HEX | #5BD5AA |
| RGB | rgb(91, 213, 170) |
| HSL | hsl(159, 59%, 60%) |
| OKLCH | oklch(79.2% 0.127 167) |
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 #5BD5AA | 1.81:1 | Fails | Lc -37.8 | Non-text elements, placeholder text |
| Black text on #5BD5AA | 11.54:1 | AAA | Lc 70.2 | Content text, not long reading |
| #5BD5AA text on white | 1.81:1 | Fails | Lc 33.7 | Non-text elements, placeholder text |
| #5BD5AA text on black | 11.54:1 | AAA | Lc -68.9 | 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
#EBF9F3
oklch(97% 0.017 168.5)
-
Step 100
100
#D4F2E5
oklch(93.6% 0.036 167.6)
-
Step 200
200
#ADE9CF
oklch(88.6% 0.071 166.3)
-
Step 300
300 (this color)
#5BD5AA
oklch(79.2% 0.127 167)
-
Step 400
400
#00BC8D
oklch(70.6% 0.145 167)
-
Step 500
500
#00A279
oklch(63.2% 0.13 167)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E45
oklch(42.8% 0.088 167.1)
-
Step 900
900
#004E39
oklch(37.6% 0.077 167.4)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#5BD5AA 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) | #D0C8A8 | 0.126 |
| Deuteranopia (no green cones) | #BFBBAD | 0.122 |
| Tritanopia (no blue cones) | #17D6C9 | 0.046 |
| Achromatopsia (no color) | #C0C0C0 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BD5AA
#5BD5AA
oklch(79.2% 0.127 167)
- #F699CB
#F699CB
oklch(79.2% 0.126 346.9)
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 #5BD5AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.023
- Seafoam Blue #78D1B6 ΔE 0.034
- Emerald #06D6A0 ΔE 0.036
- Pale Teal #82CBB2 ΔE 0.045
- Aqua Marine #2EE8BB ΔE 0.050
- Turquoise #40E0D0 ΔE 0.051
- Medium Turquoise #48D1CC ΔE 0.053
- Aqua Green #12E193 ΔE 0.060
Use #5BD5AA 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.