#51BE97
Closest named color: Green Blue (#01C08D). oklch(72.7% 0.116 166.7), rgb(81, 190, 151).
Aa
Black text reads best on this color (9.16:1).
About this color
#51BE97 is a medium-light, moderately saturated green. In OKLCH its lightness is 73%, its chroma 0.116 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Green Blue (#01C08D), ΔE 0.035 away. Black text reads best on it, at 9.16:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Green Blue (#01C08D) |
| Black text | 9.16:1 |
| White text | 2.29:1 |
Values
| HEX | #51BE97 |
| RGB | rgb(81, 190, 151) |
| HSL | hsl(159, 46%, 53%) |
| OKLCH | oklch(72.7% 0.116 166.7) |
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 #51BE97 | 2.29:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #51BE97 | 9.16:1 | AAA | Lc 59.0 | Large or bold text, headings |
| #51BE97 text on white | 2.29:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #51BE97 text on black | 9.16:1 | AAA | Lc -57.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F0F8F4
oklch(97.2% 0.01 164.9)
-
Step 100
100
#DDEFE7
oklch(93.7% 0.022 167.5)
-
Step 200
200
#C1E2D3
oklch(88.5% 0.04 166.2)
-
Step 300
300
#93D0B6
oklch(80.9% 0.073 166.3)
-
Step 400
400 (this color)
#51BE97
oklch(72.7% 0.116 166.7)
-
Step 500
500
#00A278
oklch(63.2% 0.13 166.5)
-
Step 600
600
#008865
oklch(55.6% 0.114 167)
-
Step 700
700
#007254
oklch(49% 0.101 166.9)
-
Step 800
800
#005E44
oklch(42.7% 0.088 166.3)
-
Step 900
900
#004E38
oklch(37.6% 0.078 166.4)
-
Step 950
950
#002F20
oklch(27.1% 0.056 165.8)
#51BE97 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) | #BAB295 | 0.116 |
| Deuteranopia (no green cones) | #AAA79A | 0.111 |
| Tritanopia (no blue cones) | #17BFB3 | 0.042 |
| Achromatopsia (no color) | #ABABAB | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #51BE97
#51BE97
oklch(72.7% 0.116 166.7)
- #DC88B5
#DC88B5
oklch(72.7% 0.116 347)
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 #51BE97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Green Blue #01C08D ΔE 0.035
- Greeny Blue #42B395 ΔE 0.035
- Greenblue #23C48B ΔE 0.036
- Topaz #13BBAF ΔE 0.044
- Medium Aquamarine #66CDAA ΔE 0.050
- Soft Green #6FC276 ΔE 0.051
- Faded Green #7BB274 ΔE 0.052
- Dark Mint #48C072 ΔE 0.053
Use #51BE97 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.