#51DBAD
Closest named color: Aqua Marine (#2EE8BB). oklch(80.4% 0.137 167.3), rgb(81, 219, 173).
Aa
Black text reads best on this color (12.08:1).
About this color
#51DBAD is a light, moderately saturated green. In OKLCH its lightness is 80%, its chroma 0.137 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.035 away. Black text reads best on it, at 12.08:1.
| Hue family | Greens |
| Lightness | light (80%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 12.08:1 |
| White text | 1.73:1 |
Values
| HEX | #51DBAD |
| RGB | rgb(81, 219, 173) |
| HSL | hsl(160, 66%, 59%) |
| OKLCH | oklch(80.4% 0.137 167.3) |
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 #51DBAD | 1.73:1 | Fails | Lc -35.1 | Non-text elements, placeholder text |
| Black text on #51DBAD | 12.08:1 | AAA | Lc 72.6 | Content text, not long reading |
| #51DBAD text on white | 1.73:1 | Fails | Lc 31.2 | Non-text elements, placeholder text |
| #51DBAD text on black | 12.08:1 | AAA | Lc -71.5 | 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
#EBFAF3
oklch(97.2% 0.018 166.4)
-
Step 100
100
#D2F3E4
oklch(93.6% 0.04 166.3)
-
Step 200
200
#A8EACF
oklch(88.5% 0.076 167.3)
-
Step 300
300 (this color)
#51DBAD
oklch(80.4% 0.137 167.3)
-
Step 400
400
#00BC8E
oklch(70.6% 0.144 167.5)
-
Step 500
500
#00A279
oklch(63.2% 0.13 167)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
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)
#51DBAD 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) | #D6CDAB | 0.137 |
| Deuteranopia (no green cones) | #C3BFB0 | 0.132 |
| Tritanopia (no blue cones) | #00DCCE | 0.047 |
| Achromatopsia (no color) | #C4C4C4 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51DBAD
#51DBAD
oklch(80.4% 0.137 167.3)
- #FF99D0
#FF99D0
oklch(80.4% 0.138 347.1)
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 #51DBAD, closest first.
No curated palette has a color within ΔE 0.04 of #51DBAD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.035
- Emerald #06D6A0 ΔE 0.035
- Medium Aquamarine #66CDAA ΔE 0.039
- Seafoam Blue #78D1B6 ΔE 0.044
- Turquoise #40E0D0 ΔE 0.045
- Aqua Green #12E193 ΔE 0.050
- Pale Teal #82CBB2 ΔE 0.058
- Medium Turquoise #48D1CC ΔE 0.060
Use #51DBAD 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.