#5BCBA5
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.6% 0.117 168.2), rgb(91, 203, 165).
Aa
Black text reads best on this color (10.53:1).
About this color
#5BCBA5 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.117 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.013 away. Black text reads best on it, at 10.53:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.53:1 |
| White text | 1.99:1 |
Values
| HEX | #5BCBA5 |
| RGB | rgb(91, 203, 165) |
| HSL | hsl(160, 52%, 58%) |
| OKLCH | oklch(76.6% 0.117 168.2) |
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 #5BCBA5 | 1.99:1 | Fails | Lc -42.8 | Non-text elements, placeholder text |
| Black text on #5BCBA5 | 10.53:1 | AAA | Lc 65.6 | Content text, not long reading |
| #5BCBA5 text on white | 1.99:1 | Fails | Lc 38.3 | Non-text elements, placeholder text |
| #5BCBA5 text on black | 10.53:1 | AAA | Lc -64.0 | 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
#ECF9F3
oklch(97.1% 0.016 166.7)
-
Step 100
100
#D5F2E6
oklch(93.7% 0.034 168.8)
-
Step 200
200
#B0E8D1
oklch(88.6% 0.065 167.7)
-
Step 300
300 (this color)
#5BCBA5
oklch(76.6% 0.117 168.2)
-
Step 400
400
#00BC90
oklch(70.6% 0.142 168.4)
-
Step 500
500
#00A17B
oklch(63% 0.127 168.5)
-
Step 600
600
#008867
oklch(55.7% 0.112 168.2)
-
Step 700
700
#007256
oklch(49% 0.099 168.4)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E3A
oklch(37.7% 0.076 168.5)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#5BCBA5 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) | #C6BFA3 | 0.118 |
| Deuteranopia (no green cones) | #B6B3A7 | 0.114 |
| Tritanopia (no blue cones) | #25CCC0 | 0.042 |
| Achromatopsia (no color) | #B8B8B8 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BCBA5
#5BCBA5
oklch(76.6% 0.117 168.2)
- #EA94C0
#EA94C0
oklch(76.7% 0.116 348.2)
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 #5BCBA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.013
- Seafoam Blue #78D1B6 ΔE 0.039
- Pale Teal #82CBB2 ΔE 0.041
- Emerald #06D6A0 ΔE 0.044
- Medium Turquoise #48D1CC ΔE 0.052
- Greenblue #23C48B ΔE 0.052
- Dark Sea Green #8FBC8F ΔE 0.057
- Soft Green #6FC276 ΔE 0.057
Use #5BCBA5 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.