#5BCD9B
Closest named color: Medium Aquamarine (#66CDAA). oklch(76.9% 0.128 162.2), rgb(91, 205, 155).
Aa
Black text reads best on this color (10.65:1).
About this color
#5BCD9B is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.128 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Medium Aquamarine (#66CDAA), ΔE 0.024 away. Black text reads best on it, at 10.65:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Medium Aquamarine (#66CDAA) |
| Black text | 10.65:1 |
| White text | 1.97:1 |
Values
| HEX | #5BCD9B |
| RGB | rgb(91, 205, 155) |
| HSL | hsl(154, 53%, 58%) |
| OKLCH | oklch(76.9% 0.128 162.2) |
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 #5BCD9B | 1.97:1 | Fails | Lc -42.2 | Non-text elements, placeholder text |
| Black text on #5BCD9B | 10.65:1 | AAA | Lc 66.1 | Content text, not long reading |
| #5BCD9B text on white | 1.97:1 | Fails | Lc 37.8 | Non-text elements, placeholder text |
| #5BCD9B text on black | 10.65:1 | AAA | Lc -64.6 | 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
#ECF9F2
oklch(97.1% 0.017 162.8)
-
Step 100
100
#D5F2E2
oklch(93.6% 0.037 161.5)
-
Step 200
200
#AFE8CB
oklch(88.4% 0.071 162.4)
-
Step 300
300 (this color)
#5BCD9B
oklch(76.9% 0.128 162.2)
-
Step 400
400
#00BD83
oklch(70.6% 0.154 162.4)
-
Step 500
500
#00A26F
oklch(63% 0.138 162.1)
-
Step 600
600
#00895D
oklch(55.7% 0.122 162)
-
Step 700
700
#00734E
oklch(49.1% 0.107 162.4)
-
Step 800
800
#005E3F
oklch(42.6% 0.093 162.3)
-
Step 900
900
#004F34
oklch(37.8% 0.083 162.1)
-
Step 950
950
#002F1D
oklch(27% 0.059 161.7)
#5BCD9B 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) | #CAC098 | 0.123 |
| Deuteranopia (no green cones) | #BAB49E | 0.119 |
| Tritanopia (no blue cones) | #2DCDBF | 0.052 |
| Achromatopsia (no color) | #B9B9B9 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BCD9B
#5BCD9B
oklch(76.9% 0.128 162.2)
- #EB92CA
#EB92CA
oklch(76.8% 0.127 342.2)
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 #5BCD9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Medium Aquamarine #66CDAA ΔE 0.024
- Emerald #06D6A0 ΔE 0.035
- Greenblue #23C48B ΔE 0.046
- Soft Green #6FC276 ΔE 0.046
- Seafoam Blue #78D1B6 ΔE 0.047
- Pale Teal #82CBB2 ΔE 0.051
- Green Blue #01C08D ΔE 0.057
- Seaweed #18D17B ΔE 0.059
Use #5BCD9B 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.