#5ACE91
Closest named color: Emerald (#06D6A0). oklch(76.9% 0.138 157.7), rgb(90, 206, 145).
Aa
Black text reads best on this color (10.67:1).
About this color
#5ACE91 is a medium-light, moderately saturated green. In OKLCH its lightness is 77%, its chroma 0.138 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald (#06D6A0), ΔE 0.033 away. Black text reads best on it, at 10.67:1.
| Hue family | Greens |
| Lightness | medium-light (77%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Emerald (#06D6A0) |
| Black text | 10.67:1 |
| White text | 1.96:1 |
Values
| HEX | #5ACE91 |
| RGB | rgb(90, 206, 145) |
| HSL | hsl(148, 54%, 58%) |
| OKLCH | oklch(76.9% 0.138 157.7) |
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 #5ACE91 | 1.96:1 | Fails | Lc -42.0 | Non-text elements, placeholder text |
| Black text on #5ACE91 | 10.67:1 | AAA | Lc 66.3 | Content text, not long reading |
| #5ACE91 text on white | 1.96:1 | Fails | Lc 37.7 | Non-text elements, placeholder text |
| #5ACE91 text on black | 10.67:1 | AAA | Lc -64.8 | 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
#ECF9F1
oklch(97% 0.017 159.1)
-
Step 100
100
#D5F2E0
oklch(93.5% 0.039 158.3)
-
Step 200
200
#AFE9C6
oklch(88.5% 0.076 157.9)
-
Step 300
300 (this color)
#5ACE91
oklch(76.9% 0.138 157.7)
-
Step 400
400
#00BE77
oklch(70.6% 0.165 157.9)
-
Step 500
500
#00A365
oklch(63% 0.148 157.8)
-
Step 600
600
#008954
oklch(55.5% 0.13 157.7)
-
Step 700
700
#007446
oklch(49.2% 0.116 157.5)
-
Step 800
800
#005F39
oklch(42.8% 0.1 157.9)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#5ACE91 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) | #CDC08D | 0.128 |
| Deuteranopia (no green cones) | #BCB495 | 0.124 |
| Tritanopia (no blue cones) | #31CDBE | 0.064 |
| Achromatopsia (no color) | #B9B9B9 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5ACE91
#5ACE91
oklch(76.9% 0.138 157.7)
- #EC90D3
#EC90D3
oklch(76.9% 0.138 337.7)
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 #5ACE91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald #06D6A0 ΔE 0.033
- Medium Aquamarine #66CDAA ΔE 0.038
- Soft Green #6FC276 ΔE 0.039
- Greenblue #23C48B ΔE 0.044
- Seaweed #18D17B ΔE 0.046
- Dark Mint #48C072 ΔE 0.053
- Aqua Green #12E193 ΔE 0.056
- Green Blue #01C08D ΔE 0.057
Use #5ACE91 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.