#51EAB9
Closest named color: Aqua Marine (#2EE8BB). oklch(84.4% 0.147 167.8), rgb(81, 234, 185).
Aa
Black text reads best on this color (13.81:1).
About this color
#51EAB9 is a light, vivid green. In OKLCH its lightness is 84%, its chroma 0.147 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Marine (#2EE8BB), ΔE 0.016 away. Black text reads best on it, at 13.81:1.
| Hue family | Greens |
| Lightness | light (84%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Aqua Marine (#2EE8BB) |
| Black text | 13.81:1 |
| White text | 1.51:1 |
Values
| HEX | #51EAB9 |
| RGB | rgb(81, 234, 185) |
| HSL | hsl(161, 78%, 62%) |
| OKLCH | oklch(84.4% 0.147 167.8) |
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 #51EAB9 | 1.51:1 | Fails | Lc -27.0 | Dividers and decoration only |
| Black text on #51EAB9 | 13.81:1 | AAA | Lc 80.0 | Fine for body text |
| #51EAB9 text on white | 1.51:1 | Fails | Lc 23.8 | Dividers and decoration only |
| #51EAB9 text on black | 13.81:1 | AAA | Lc -79.4 | Fine for body text |
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
#EAFAF3
oklch(97.1% 0.019 167.9)
-
Step 100
100
#D0F4E4
oklch(93.7% 0.043 166.8)
-
Step 200
200
#A4EBCF
oklch(88.5% 0.081 168)
-
Step 300
300 (this color)
#51EAB9
oklch(84.4% 0.147 167.8)
-
Step 400
400
#00BC8F
oklch(70.6% 0.143 168)
-
Step 500
500
#00A27A
oklch(63.2% 0.129 167.5)
-
Step 600
600
#008866
oklch(55.6% 0.113 167.6)
-
Step 700
700
#007255
oklch(49% 0.1 167.6)
-
Step 800
800
#005E46
oklch(42.8% 0.087 168)
-
Step 900
900
#004E39
oklch(37.6% 0.077 167.4)
-
Step 950
950
#002F21
oklch(27.1% 0.055 167.3)
#51EAB9 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) | #E4DAB6 | 0.147 |
| Deuteranopia (no green cones) | #D0CBBC | 0.143 |
| Tritanopia (no blue cones) | #00EBDC | 0.048 |
| Achromatopsia (no color) | #D1D1D1 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51EAB9
#51EAB9
oklch(84.4% 0.147 167.8)
- #FFB0D8
#FFB0D8
oklch(84.4% 0.104 347.8)
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 #51EAB9, closest first.
No curated palette has a color within ΔE 0.04 of #51EAB9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Marine #2EE8BB ΔE 0.016
- Bright Teal #01F9C6 ΔE 0.040
- Turquoise #40E0D0 ΔE 0.050
- Light Turquoise #7EF4CC ΔE 0.050
- Light Teal #90E4C1 ΔE 0.052
- Greenish Turquoise #00FBB0 ΔE 0.054
- Hospital Green #9BE5AA ΔE 0.056
- Greenish Cyan #2AFEB7 ΔE 0.057
Use #51EAB9 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.