#5BDD91
Closest named color: Aqua Green (#12E193). oklch(80.6% 0.158 154.7), rgb(91, 221, 145).
Aa
Black text reads best on this color (12.19:1).
About this color
#5BDD91 is a light, vivid green. In OKLCH its lightness is 81%, its chroma 0.158 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.027 away. Black text reads best on it, at 12.19:1.
| Hue family | Greens |
| Lightness | light (81%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 12.19:1 |
| White text | 1.72:1 |
Values
| HEX | #5BDD91 |
| RGB | rgb(91, 221, 145) |
| HSL | hsl(145, 66%, 61%) |
| OKLCH | oklch(80.6% 0.158 154.7) |
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 #5BDD91 | 1.72:1 | Fails | Lc -34.6 | Non-text elements, placeholder text |
| Black text on #5BDD91 | 12.19:1 | AAA | Lc 73.1 | Content text, not long reading |
| #5BDD91 text on white | 1.72:1 | Fails | Lc 30.7 | Non-text elements, placeholder text |
| #5BDD91 text on black | 12.19:1 | AAA | Lc -72.0 | 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
#EBFAEF
oklch(97.1% 0.021 154.1)
-
Step 100
100
#D3F3DD
oklch(93.5% 0.045 155.4)
-
Step 200
200
#ABEBC0
oklch(88.5% 0.088 154.8)
-
Step 300
300 (this color)
#5BDD91
oklch(80.6% 0.158 154.7)
-
Step 400
400
#00BF6D
oklch(70.7% 0.176 154.8)
-
Step 500
500
#00A45D
oklch(63.1% 0.157 154.8)
-
Step 600
600
#008A4D
oklch(55.6% 0.138 154.7)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F33
oklch(42.6% 0.106 154.6)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#003017
oklch(27.1% 0.068 154.6)
#5BDD91 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) | #DCCD8C | 0.140 |
| Deuteranopia (no green cones) | #CBC096 | 0.138 |
| Tritanopia (no blue cones) | #2CDBC9 | 0.078 |
| Achromatopsia (no color) | #C5C5C5 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5BDD91
#5BDD91
oklch(80.6% 0.158 154.7)
- #FD96E8
#FD96E8
oklch(80.6% 0.158 334.9)
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 #5BDD91, closest first.
No curated palette has a color within ΔE 0.04 of #5BDD91.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.027
- Weird Green #3AE57F ΔE 0.040
- Emerald #06D6A0 ΔE 0.043
- Aqua Marine #2EE8BB ΔE 0.052
- Seaweed #18D17B ΔE 0.054
- Medium Aquamarine #66CDAA ΔE 0.065
- Fresh Green #69D84F ΔE 0.066
- Light Green #90EE90 ΔE 0.069
Use #5BDD91 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.